Lintel Manual 11 - NMBS
Lintel Manual 11 - NMBS
Lintel Manual 11 - NMBS
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<strong>Lintel</strong> <strong>Manual</strong> <strong>11</strong><br />
Cl/SfB (31.9) Hh2
The UK and Ireland’s leading supplier of Steel <strong>Lintel</strong>s and<br />
the authority on providing lintel solutions to builders,<br />
developers, builders merchants and end-users.<br />
Keystone <strong>Lintel</strong>s Limited, the leading manufacturer of steel lintels was founded in 1989.<br />
The short history of Keystone has been one of relentless expansion and continuous<br />
innovation whilst redefining the meaning of service in the lintel industry.<br />
Production facilities in Swadlincote and Cookstown provide an efficient, flexible and ergonomic working environment,<br />
which is part of the culture of quality and service at Keystone.<br />
Keystone Group HQ, Cookstown<br />
Keystone <strong>Lintel</strong>s, Swadlincote<br />
Keystone… the lintel company with genuine commitment to servicing your lintel requirements.<br />
Keystone’s most important asset is its people. Every employee undergoes training on our NVQ approved premises.<br />
We have also received the Investors in People accreditation.<br />
Keystone People<br />
Professional<br />
Trained and Motivated<br />
Accessible<br />
Responsive<br />
Extensive Product Knowledge<br />
2
The Keystone support package includes:<br />
Contents<br />
page<br />
Individual design service on full range of lintels<br />
On site technical assistance and measurement<br />
Free scheduling and specification service<br />
Extensive range of steel lintels and structural supports<br />
Structural performance calculations<br />
Best delivery service in the industry<br />
Comprehensive product literature<br />
Interactive website with AutoCAD drawings<br />
RIBA Assessed CPD Online “Steel <strong>Lintel</strong>s – The Definitive Guide”.<br />
Visit www.keystonelintels.co.uk/cpd<br />
BMF & <strong>NMBS</strong> Approved Merchant e-Learning - Staff Training Online<br />
Visit www.keystonelintels.co.uk/merchant<br />
Company Profile 2<br />
<strong>Lintel</strong> Selection Chart 4<br />
Technical Data 6<br />
Cavity Wall <strong>Lintel</strong> 8<br />
(50-165mm Cavity)<br />
Extra Heavy Duty <strong>Lintel</strong>s 17<br />
Eaves <strong>Lintel</strong>s 18<br />
Archboards 18<br />
Solid Wall <strong>Lintel</strong>s 19<br />
Single Leaf <strong>Lintel</strong>s 20<br />
Box <strong>Lintel</strong>s 22<br />
Thin Joint <strong>Lintel</strong>s 24<br />
Cavity Trays 26<br />
Extended Range 28<br />
RIBA Assessed CPD 29<br />
Special & Custom-made <strong>Lintel</strong>s 30<br />
Full Arch 32<br />
Segmental Arch 32<br />
Venetian Arch 33<br />
Apex Arch 33<br />
Parabolic Arch 34<br />
Gothic Arch 35<br />
Corner 36<br />
Bow 37<br />
Square Bay 38<br />
Splayed Bay 39<br />
Sun Lounge <strong>Lintel</strong> 40<br />
Bow Sun Lounge <strong>Lintel</strong> 44<br />
Venetian Arch Sun Lounge <strong>Lintel</strong> 45<br />
Apex Sun Lounge <strong>Lintel</strong> 46<br />
Brick Arch Sets 47<br />
Windposts 48<br />
Keystone “Special” Projects 50<br />
Keylite Roof Windows 58<br />
3
<strong>Lintel</strong> Selection Chart<br />
50-70mm Cavity Wall <strong>Lintel</strong>s<br />
S/K-50<br />
S/K-50 WIL<br />
S/K-50 WOL<br />
Standard Loading<br />
Page 8<br />
HD/K-50<br />
Page 8<br />
HD/K-50 WIL<br />
Page 8<br />
CFS/K-50<br />
Heavy Duty Loading<br />
Page 9<br />
Page 9<br />
Page 9<br />
70-90mm Cavity Wall <strong>Lintel</strong>s<br />
S/K-70<br />
S/K-70 WIL<br />
S/K-70 WOL<br />
Standard Loading<br />
Page 10<br />
HD/K-70<br />
Page 10<br />
HD/K-70 WIL<br />
Page 10<br />
CFS/K-70<br />
Heavy Duty Loading<br />
Page <strong>11</strong><br />
Page <strong>11</strong><br />
Page <strong>11</strong><br />
90-<strong>11</strong>0mm Cavity Wall <strong>Lintel</strong>s<br />
S/K-90<br />
S/K-90 WIL<br />
S/K-90 WOL<br />
Standard Loading<br />
Page 12<br />
HD/K-90<br />
Page 12<br />
HD/K-90 WIL<br />
Page 12<br />
CFS/K-90<br />
Heavy Duty Loading<br />
Page 13<br />
Page 13<br />
Page 13<br />
<strong>11</strong>0-165mm Cavity Wall <strong>Lintel</strong>s<br />
S/K-<strong>11</strong>0<br />
S/K-<strong>11</strong>0 WIL<br />
HD/K-<strong>11</strong>0<br />
<strong>11</strong>0-130mm Cavity<br />
Page 14<br />
S/K-130<br />
Page 14<br />
S/K-130 WIL<br />
Page 14<br />
HD/K-130<br />
130-150mm Cavity<br />
Page 15<br />
Page 15<br />
Page 15<br />
S/K-150<br />
S/K-150 WIL<br />
HD/K-150<br />
150-165mm Cavity<br />
Page 16<br />
Page 16<br />
Page 16<br />
Extra Heavy Duty <strong>Lintel</strong>s<br />
X/K<br />
X/K-WIL<br />
X/K-215 WIL<br />
Page 17 Page 17 Page 17<br />
Solid Wall <strong>Lintel</strong>s<br />
INT/K<br />
SW/K<br />
IB/K (2c)<br />
Page 19 Page 19 Page 19<br />
Box <strong>Lintel</strong>s<br />
BOX/K-60 BOX/K-75<br />
BOX/K-100<br />
BOX/K-150<br />
Standard Loading<br />
Heavy Duty Loading<br />
Page 22 Page 22 Page 23<br />
HDBOX/K-100<br />
HDBOX/K-150<br />
HDBOX/K-200<br />
Page 22 Page 23 Page 23<br />
Single Leaf <strong>Lintel</strong>s<br />
SB/K<br />
SL/K<br />
SW/K-100<br />
Page 20 Page 20 Page 20<br />
T/K HDT/K<br />
B/K<br />
RB/K<br />
Page 21 Page 20 Page 21<br />
Eaves <strong>Lintel</strong>s and Arch Boards<br />
EL/K-50<br />
EL/K-90<br />
Arch Boards<br />
Page 18 Page 18 Page 18<br />
4
CPD Online: www.keystonelintels.co.uk/cpd<br />
Special & Custom-made <strong>Lintel</strong>s<br />
S/K-50 215 WIL<br />
Full Arch <strong>Lintel</strong><br />
Segmental Arch <strong>Lintel</strong><br />
Venetian Arch <strong>Lintel</strong><br />
Page 8<br />
CFS/K-50 WIL<br />
Page 9<br />
S/K-70 215 WIL<br />
Page 10<br />
CFS/K-70 WIL<br />
Page <strong>11</strong><br />
Page 32<br />
Page 32<br />
Page 33<br />
Apex Arch <strong>Lintel</strong> Parabolic Arch <strong>Lintel</strong> Gothic Arch <strong>Lintel</strong><br />
S/K-90 215 WIL<br />
Page 12<br />
CFS/K-90 WIL<br />
Page 13<br />
CFS/K-<strong>11</strong>0<br />
Page 14<br />
CFS/K-130<br />
Page 15<br />
CFS/K-150<br />
Page 33<br />
Corner <strong>Lintel</strong><br />
Page 34 Page 35<br />
Bow <strong>Lintel</strong><br />
Square Bay <strong>Lintel</strong><br />
Page 16<br />
Page 36<br />
Page 37<br />
Page 38<br />
IBX/K<br />
Splayed Bay <strong>Lintel</strong><br />
Sun Lounge <strong>Lintel</strong><br />
Bow Sun Lounge <strong>Lintel</strong><br />
Page 17<br />
IB/K (3c)<br />
Page 19<br />
BOX/K-200<br />
Page 23<br />
TJ/K & TW/K<br />
Thin Joint <strong>Lintel</strong>s<br />
Page 24 and 25<br />
Cavity Trays<br />
Page 26<br />
Roller Shutter <strong>Lintel</strong><br />
Page 28<br />
Brick Arch Sets<br />
Page 47<br />
Windposts<br />
Page 48<br />
Page 39<br />
Venetian Arch Sun<br />
Lounge <strong>Lintel</strong><br />
Page 45<br />
Page 40<br />
Apex Sun Lounge<br />
<strong>Lintel</strong><br />
Page 46<br />
Page 44<br />
Keystone “Special”<br />
Projects<br />
Page 50<br />
the key to a brighter life<br />
Page 58<br />
5
Technical Data<br />
Material<br />
Keystone <strong>Lintel</strong>s are manufactured from high quality grade galvanised steel to BS EN<br />
10346:2009 DX51D plus Z600 or Z275 with minimised spangle finish. In accordance with<br />
BS5977: part 2, 1983 (BS EN 845-2:2003) all cut edges are treated with corrosion resistant<br />
paint.<br />
Insulation<br />
The Keystone <strong>Lintel</strong> core is entirely filled with ‘CFC free’ insulation, which completely fills<br />
all voids in the lintel, particularly at the apex ensuring continuity with wall insulation and<br />
reducing cold bridge effect in this area. This ensures that the Keystone <strong>Lintel</strong> range is one<br />
of the most thermally efficient lintels available with a thermal conductivity of 0.033 W/mk.<br />
Quality<br />
ISO 9001<br />
CERTIFICATE NO. FM 21541<br />
ISO 14001<br />
CERTIFICATE NO. EMS 553955<br />
Structural<br />
Performance<br />
Keystone <strong>Lintel</strong>s are manufactured to the highest quality and are continually assessed by the<br />
BSI to ensure our quality assurance systems comply with BS EN ISO 9001: 2008. The ‘Keystone<br />
People’ are also a highly trained and motivated workforce. Our manufacturing premises have<br />
been approved as a N.V.Q. Training Centre and the company has also received the Investors In<br />
People Accreditation.<br />
Keystone is committed to the continuous development of our Environmental Management<br />
Systems, working in partnership with our specifiers, customers and suppliers. Keystone <strong>Lintel</strong>s<br />
Ltd are the first steel lintel manufacturer to be awarded BS EN ISO 14001:2004.<br />
The Keystone <strong>Lintel</strong> range have safe working loads shown in each applicable loading table,<br />
taking into account the differential loading arrangements which are common to traditional<br />
cavity wall construction.<br />
Differential Load 3:1 ratio, 75% load on inner leaf.<br />
Differential Load 19:1 ratio, 95% load on inner leaf.<br />
<strong>Lintel</strong> Types HD/K, S/K-50 (215WIL), S/K-70 (215WIL), SK-90 (215WIL), S/K-<strong>11</strong>0, S/K-130, S/K-150,<br />
SB/K, T/K, SL/K, RB/K, TJ/K, TW/K, INT/K, SW/K, IB/K, EL/K-50, EL/K-90, CFS/K, X/K have been tested<br />
as a composite unit with surrounding masonry, built in accordance with BS5628-3:2005. These<br />
composite units have been tested in accordance with the requirements of BS5977: part 2 1983<br />
(BS EN 845-2:2003).<br />
Testing<br />
BBA – Extensive testing has been carried out on the Keystone range of lintels. The lintel testing<br />
procedure and Agrément Board assessment is carried out under the direct supervision of<br />
the University of Ulster.<br />
Fire Test – The Keystone S/K lintel range has been subjected to fire tests at the Warrington Fire<br />
Research Station and has achieved a one hour fire certificate by successfully supporting their<br />
imposed load for 48 hours after the tests.<br />
Durability – The service life of lintels shall be the same as that anticipated for the building<br />
within which they are used, when used in conjunction with a flexible D.P.C. and where the<br />
normal humidity and condensation levels of a habitable building exist. The Keystone <strong>Lintel</strong><br />
range complies with the technical requirements of the Housing Association Property Mutual<br />
6
CPD Online: www.keystonelintels.co.uk/cpd<br />
Technical Data<br />
Installation<br />
<strong>Lintel</strong>s should be installed with a minimum end bearing of 150mm bedded in mortar,<br />
levelled along its length and across its width. With cavity walls, both leaves should be raised<br />
together to avoid excessive eccentricity of loading and be allowed to cure before applying<br />
floor or roof loads. Blockwork is permitted to overhang the lintel flange by a maximum of<br />
25mm. Point loads and concrete floor units should not be applied without prior consultation<br />
with our Technical Department or a Structural Engineer.<br />
Care should also be exercised in the selection of lintels for each application with regard<br />
to wall construction, cavity width and loads applied.<br />
COSHH – All components and materials in our products are considered as non-hazardous to<br />
health under normal conditions of use as determined by COSHH Regulations 1994.<br />
Due care should be taken when lifting and handling lintels with regard to weights. A table<br />
of weights for individual lintel types is available on request. For further information contact<br />
our Technical Department.<br />
A cavity tray should be installed over all openings in external cavity walls.<br />
Support for<br />
the Specifier<br />
For queries regarding<br />
Keystone AutoCAD files<br />
please contact Fastrack on<br />
Tel: +44 (0)20 8668 4646<br />
We provide the following:<br />
Individual Design Service on full range of Specials<br />
On-Site technical assistance and measurement<br />
Specification service for Architects and Engineers<br />
Take off / Scheduling Service for drawings<br />
Structural Performance Calculations<br />
Comprehensive product range literature<br />
and interactive website<br />
<br />
“Steel <strong>Lintel</strong>s – The Definitive Guide”.<br />
Visit www.keystonelintels.co.uk/cpd<br />
To view or download any of our architectural details and sun<br />
lounge plans visit our website at www.keystonelintels.co.uk<br />
Keystone <strong>Lintel</strong><br />
Profile<br />
Negligible Cold<br />
Bridging Effect<br />
Profiled Insulation<br />
‘CFC free’<br />
Steel Plaster Key for improved fire resistance<br />
Thermal Break Plate<br />
(Part ‘L’ Compliant) for added rigidity and structural performance<br />
7
50-70mm Cavity<br />
Standard Loading<br />
S/K-50<br />
Manufactured Length 600 1350 1650 1950 2250 2550 2850 3150 3750 4200*<br />
in 150mm increments 1200 1500 1800 2100 2400 2700 3000 3600 4000 4800*<br />
Height ‘h’ 79 98 <strong>11</strong>0 134 150 172 172 209 209 209<br />
‘h’ nominal<br />
Thickness 1.6 1.8 2 2 2 2 2.5 2.9 2.9 3.2<br />
Total UDL kn 3:1 12 14 19 21 21 26 27 27 26 27<br />
95 48 100<br />
Total UDL kn 19:1 10 12 16 17 19 22 20 20 19 22<br />
S/K-50 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1650 1950 2250 2550 3150* 3750*<br />
in 150mm increments 1500 1800 2100 2400 3000 3600* 4200*<br />
Height ‘h’ 96 <strong>11</strong>0 136 162 172 196 196<br />
‘h’ nominal<br />
Thickness 2 2 2 2 2.5 3.2 3.2<br />
Total UDL kn 3:1 12 15 20 24 28 30 27<br />
95 48 125<br />
Total UDL kn 19:1 10 13 18 20 21 26 25<br />
S/K-50 215 WIL<br />
Extended fin 225mm high for<br />
lintels greater than 2100mm long<br />
215mm wide inner leaf<br />
Manufactured Length 600* 1350* 1650* 1950* 2250* 2550* 2850* 3150*<br />
in 150mm increments 1200* 1500* 1800* 2100* 2400* 2700* 3000* 4000*<br />
Height ‘h’ 78 104 121 146 171 171 209 209<br />
Thickness 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.9<br />
Total UDL kn 3:1 25 25 25 30 30 35 40 40<br />
‘h’ nominal<br />
Total UDL kn 19:1 20 20 20 25 25 30 35 35<br />
100 120 140 175 225 225 225 225<br />
95 48 210<br />
Fin height equals lintel height up to 2100mm long<br />
S/K-50 WOL<br />
For standard loading conditions with 215mm wide inner leaf as a composite beam.<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
150mm wide outer leaf<br />
Manufactured Length 600 1500 1800 2250 2850* 3150*<br />
in 150mm increments 1350 1650 2100 2700 3000* 3600*<br />
Height ‘h’ <strong>11</strong>0 122 172 200 200 200<br />
‘h’ nominal<br />
Thickness 2.5 2.5 2.5 2.9 2.9 3.2<br />
Total UDL kn 3:1 14 15 23 30 32 30<br />
120 48 100<br />
Total UDL kn 19:1 <strong>11</strong> 13 18 22 30 26<br />
8
CPD Online: www.keystonelintels.co.uk/cpd<br />
50-70mm Cavity<br />
Heavy Duty Loading<br />
HD/K-50<br />
Manufactured Length 600 1350 1650* 2250* 2700* 3150* 3750*<br />
in 150mm increments 1200 1500 2100* 2550* 3000* 3600* 4200*<br />
‘h’ nominal<br />
Height ‘h’ 105 121 171 209 209 209 209<br />
Thickness 2.9 2.9 2.9 2.9 3.2 3.2 3.2<br />
Total UDL kn 3:1 30 30 40 40 40 35 33<br />
95 48 100<br />
Total UDL kn 19:1 22 22 35 35 35 32 28<br />
HD/K-50 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1350* 1650* 1950* 2250*<br />
in 150mm increments 1200 1500* 1800* 2100* 2700*<br />
Height ‘h’ 95 109 161 161 200<br />
‘h’ nominal<br />
Thickness 2.9 2.9 2.9 2.9 3.2<br />
Total UDL kn 3:1 20 25 35 30 36<br />
95 48 125<br />
Total UDL kn 19:1 17 22 27 25 32<br />
CFS/K-50<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 48 100<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
CFS/K-50 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 48 125<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
*Continuous Bottom Plate<br />
9
70-90mm Cavity<br />
Standard Loading<br />
S/K-70<br />
Manufactured Length 600 1350 1650 1950 2250 2550 3150 3750 4200*<br />
in 150mm increments 1200 1500 1800 2100 2400 3000 3600 4000 4800*<br />
Height ‘h’ 98 89 106 130 142 168 204 204 204<br />
‘h’ nominal<br />
Thickness 1.6 1.8 2 2 2 2.5 2.9 2.9 3.2<br />
Total UDL kn 3:1 12 14 18 21 21 27 27 26 27<br />
95 68 100<br />
Total UDL kn 19:1 10 12 14 17 19 22 20 19 22<br />
S/K-70 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1500 1950 2250 2550 3150* 3750*<br />
in 150mm increments 1350 1650 1800 2100 2400 3000 3600* 4200*<br />
Height ‘h’ 93 90 <strong>11</strong>0 134 158 167 192 192<br />
‘h’ nominal<br />
Thickness 2 2 2 2 2 2.5 3.2 3.2<br />
Total UDL kn 3:1 12 13 20 19 24 27 30 27<br />
95 68 125<br />
Total UDL kn 19:1 10 <strong>11</strong> 17 17 20 21 26 25<br />
S/K-70 215 WIL<br />
Extended fin 225mm high for<br />
lintels greater than 2100mm long<br />
215mm wide inner leaf<br />
Manufactured Length 600* 1350* 1650* 1950* 2250* 2550* 2850* 3150*<br />
in 150mm increments 1200* 1500* 1800* 2100* 2400* 2700* 3000* 4000*<br />
Height ‘h’ 67 100 <strong>11</strong>0 142 167 167 167 204<br />
Thickness 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.9<br />
Total UDL kn 3:1 25 25 25 30 30 35 40 40<br />
‘h’ nominal<br />
Total UDL kn 19:1 20 20 20 25 25 30 35 35<br />
100 120 140 175 225 225 225 225<br />
95 68 210<br />
Fin height equals lintel height up to 2100mm long<br />
S/K-70 WOL<br />
For standard loading conditions with 215mm wide inner leaf as a composite beam.<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
150mm wide outer leaf<br />
Manufactured Length 600 1500 1800 2250 2850* 3150*<br />
in 150mm increments 1350 1650 2100 2700 3000* 3600*<br />
Height ‘h’ 106 <strong>11</strong>8 168 192 192 192<br />
‘h’ nominal<br />
Thickness 2.5 2.5 2.5 2.9 2.9 3.2<br />
Total UDL kn 3:1 14 15 23 30 32 30<br />
120 68 100<br />
Total UDL kn 19:1 <strong>11</strong> 13 18 22 30 26<br />
10
CPD Online: www.keystonelintels.co.uk/cpd<br />
70-90mm Cavity<br />
Heavy Duty Loading<br />
HD/K-70<br />
Manufactured Length 600 1350 1650* 2250* 2700* 3150* 3750*<br />
in 150mm increments 1200 1500 2100* 2550* 3000* 3600* 4200*<br />
‘h’ nominal<br />
Height ‘h’ 103 <strong>11</strong>7 167 205 205 205 205<br />
Thickness 2.9 2.9 2.9 2.9 3.2 3.2 3.2<br />
Total UDL kn 3:1 30 30 40 40 40 35 33<br />
95 68 100<br />
Total UDL kn 19:1 22 22 35 35 35 32 28<br />
HD/K-70 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1500* 1950* 2250*<br />
in 150mm increments 1350 1800* 2100* 2700*<br />
Height ‘h’ 130 155 192 192<br />
‘h’ nominal<br />
Thickness 2.9 2.9 2.9 3.2<br />
Total UDL kn 3:1 20 25 30 36<br />
95 68 125<br />
Total UDL kn 19:1 17 22 25 32<br />
CFS/K-70<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 68 100 To achieve loading figures, lintel must be built in with blockwork as shown.<br />
CFS/K-70 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 68 125<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
*Continuous Bottom Plate<br />
<strong>11</strong>
90-<strong>11</strong>0mm Cavity<br />
Standard Loading<br />
S/K-90<br />
Manufactured Length 600 1350 1650 1950 2250 2550 2850 3150 3750 4200*<br />
in 150mm increments 1200 1500 1800 2100 2400 2700 3000 3600 4000 4800*<br />
Height ‘h’ 88 88 107 125 150 162 171 200 200 200<br />
‘h’ nominal<br />
Thickness 1.6 1.8 2 2 2 2.5 2.5 2.9 2.9 3.2<br />
Total UDL kn 3:1 12 16 19 21 23 27 27 27 26 27<br />
95 88 100<br />
Total UDL kn 19:1 10 13 16 17 18 22 20 20 19 22<br />
S/K-90 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1350 1950 2550 3150* 3750*<br />
in 150mm increments 1200 1800 2400 3000 3600* 4200*<br />
Height ‘h’ 92 107 150 177 188 188<br />
‘h’ nominal<br />
Thickness 2 2 2 2.5 3.2 3.2<br />
Total UDL kn 3:1 13 17 23 24 30 27<br />
95 88 125<br />
Total UDL kn 19:1 <strong>11</strong> 14 18 18 26 25<br />
S/K-90 215 WIL<br />
Extended fin 225mm high for<br />
lintels greater than 2100mm long<br />
215mm wide inner leaf<br />
Manufactured Length 600* 1500* 1800* 2250* 2850* 3150*<br />
in 150mm increments 1350* 1650* 2100* 2700* 3000* 4000*<br />
Height ‘h’ 90 105 138 163 171 200<br />
Thickness 2.5 2.5 2.5 2.5 2.5 3.2<br />
Total UDL kn 3:1 25 25 30 35 40 40<br />
‘h’ nominal<br />
Total UDL kn 19:1 20 20 25 30 35 35<br />
100 120 175 225 225 225<br />
95 88 210<br />
Fin height equals lintel height up to 2100mm long<br />
S/K-90 WOL<br />
For standard loading conditions with 215mm wide inner leaf as a composite beam.<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
150mm wide outer leaf<br />
Manufactured Length 600 1500 1800 2250 2850* 3150*<br />
in 150mm increments 1350 1650 2100 2700 3000* 3600*<br />
Height ‘h’ 93 <strong>11</strong>0 162 188 188 188<br />
‘h’ nominal<br />
Thickness 2.5 2.5 2.5 2.9 3.2 3.2<br />
Total UDL kn 3:1 14 15 23 30 32 30<br />
120 88 100<br />
Total UDL kn 19:1 <strong>11</strong> 13 18 22 30 26<br />
12
CPD Online: www.keystonelintels.co.uk/cpd<br />
90-<strong>11</strong>0mm Cavity<br />
Heavy Duty Loading<br />
HD/K-90<br />
Manufactured Length 600 1350* 1650* 2250* 2700* 3150* 3750*<br />
in 150mm increments 1200 1500* 2100* 2550* 3000* 3600* 4200*<br />
Height ‘h’ <strong>11</strong>0 135 163 203 203 203 203<br />
‘h’ nominal<br />
Thickness 2.9 2.9 2.9 2.9 3.2 3.2 3.2<br />
Total UDL kn 3:1 30 30 40 40 40 35 33<br />
95 88 100<br />
Total UDL kn 19:1 22 22 35 35 35 32 28<br />
HD/K-90 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1350* 1650* 1950* 2250*<br />
in 150mm increments 1200 1500* 1800* 2100* 2700*<br />
Height ‘h’ <strong>11</strong>3 135 165 165 188<br />
‘h’ nominal<br />
Thickness 2.9 2.9 2.9 2.9 3.2<br />
Total UDL kn 3:1 20 25 35 30 36<br />
95 88 125<br />
Total UDL kn 19:1 17 22 27 25 32<br />
CFS/K-90<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 88 100 To achieve loading figures, lintel must be built in with blockwork as shown.<br />
CFS/K-90 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 88 125<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
*Continuous Bottom Plate<br />
13
<strong>11</strong>0-130mm Cavity<br />
Wide Cavity <strong>Lintel</strong>s<br />
S/K-<strong>11</strong>0<br />
Manufactured Length 600* 1650* 1950* 2250* 3150* 4200*<br />
in 150mm increments 1500* 1800* 2100* 3000* 4000* 4800*<br />
Height ‘h’ 95 121 145 195 195 195<br />
‘h’ nominal<br />
Thickness 2 2 2.5 2.9 3.2 3.2<br />
Total UDL kn 3:1 16 22 24 27 26 25<br />
95 108 100<br />
Total UDL kn 19:1 13 18 18 22 19 20<br />
S/K-<strong>11</strong>0 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600* 1350* 1950* 2550* 3150*<br />
in 150mm increments 1200* 1800* 2400* 3000* 4000*<br />
Height ‘h’ 95 107 142 185 185<br />
‘h’ nominal<br />
Thickness 2 2 2.5 2.9 3.2<br />
Total UDL kn 3:1 13 17 23 24 24<br />
95 108 125<br />
Total UDL kn 19:1 <strong>11</strong> 14 18 18 17<br />
SK-<strong>11</strong>0 WIL range are also available to suit 215mm wide inner leaf e.g. specify S/K-<strong>11</strong>0 215WIL.<br />
Contact Keystone Technical Team for load tables.<br />
HD/K-<strong>11</strong>0<br />
Manufactured Length 600* 1650* 2250* 3150* 3750*<br />
in 150mm increments 1500* 2100* 3000* 3600* 4000*<br />
‘h’ nominal<br />
Height ‘h’ 125 145 195 195 195<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 3:1 30 30 35 32 30<br />
95 108 100<br />
Total UDL kn 19:1 20 22 30 28 26<br />
HD/K-<strong>11</strong>0 range is also available to suit 150mm wide inner leaf e.g. specify HD/K-<strong>11</strong>0 WIL.<br />
CFS/K-<strong>11</strong>0<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 108 100<br />
CFS/K-<strong>11</strong>0 range is also available to suit 150mm wide inner leaf e.g. specify CFS/K-<strong>11</strong>0 WIL.<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
14
CPD Online: www.keystonelintels.co.uk/cpd<br />
130-150mm Cavity<br />
Wide Cavity <strong>Lintel</strong>s<br />
S/K-130<br />
Manufactured Length 600* 1650* 1950* 2250* 3150* 4200*<br />
in 150mm increments 1500* 1800* 2100* 3000* 4000* 4800*<br />
Height ‘h’ 103 128 190 190 190 190<br />
‘h’ nominal<br />
Thickness 2 2 2.5 2.9 3.2 3.2<br />
Total UDL kn 3:1 16 22 24 27 26 25<br />
95 128 100<br />
Total UDL kn 19:1 13 18 18 22 19 20<br />
S/K-130 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600* 1350* 1950* 2550* 3150*<br />
in 150mm increments 1200* 1800* 2400* 3000* 4000*<br />
Height ‘h’ 90 <strong>11</strong>8 178 178 178<br />
‘h’ nominal<br />
Thickness 2 2 2.5 2.9 3.2<br />
Total UDL kn 3:1 13 17 23 24 24<br />
95 128 125<br />
Total UDL kn 19:1 <strong>11</strong> 14 18 18 17<br />
SK-130 WIL range are also available to suit 215mm wide inner leaf e.g. specify S/K-130 215WIL.<br />
Contact Keystone Technical Team for load tables.<br />
HD/K-130<br />
Manufactured Length 600* 1650* 2250* 3150* 3750*<br />
in 150mm increments 1500* 2100* 3000* 3600* 4000*<br />
Height ‘h’ <strong>11</strong>5 155 190 190 212<br />
‘h’ nominal<br />
Thickness 2.9 2.9 3.2 3.2 3.2<br />
Total UDL kn 3:1 30 30 35 30 30<br />
95 128 100<br />
Total UDL kn 19:1 20 22 30 25 26<br />
HD/K-130 range is also available to suit 150mm wide inner leaf e.g. specify HD/K-130 WIL.<br />
CFS/K-130<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 128 100<br />
CFS/K-130 range is also available to suit 150mm wide inner leaf e.g. specify CFS/K-130 WIL.<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
*Continuous Bottom Plate<br />
15
150-165mm Cavity<br />
Wide Cavity <strong>Lintel</strong>s<br />
S/K-150<br />
Manufactured Length 600* 1650* 1950* 2250* 3150* 4200*<br />
in 150mm increments 1500* 1800* 2100* 3000* 4000* 4800*<br />
Height ‘h’ 100 125 180 180 180 180<br />
‘h’ nominal<br />
Thickness 2 2 2.5 2.9 3.2 3.2<br />
Total UDL kn 3:1 16 22 24 27 26 25<br />
95 148 100<br />
Total UDL kn 19:1 13 18 18 22 19 20<br />
S/K-150 WIL<br />
150mm wide inner leaf<br />
Manufactured Length 600* 1350* 1950* 2550* 3150*<br />
in 150mm increments 1200* 1800* 2400* 3000* 4000*<br />
Height ‘h’ 88 <strong>11</strong>5 168 168 168<br />
‘h’ nominal<br />
Thickness 2 2 2.5 2.9 3.2<br />
Total UDL kn 3:1 13 17 23 24 24<br />
95 148 125<br />
Total UDL kn 19:1 <strong>11</strong> 14 18 18 17<br />
SK-150 WIL range are also available to suit 215mm wide inner leaf e.g. specify S/K-150 215WIL.<br />
Contact Keystone Technical Team for load tables.<br />
HD/K-150<br />
Manufactured Length 600* 1650* 2250* 3150* 3750*<br />
in 150mm increments 1500* 2100* 3000* 3600* 4000*<br />
Height ‘h’ 125 160 180 180 200<br />
‘h’ nominal<br />
Thickness 2.9 2.9 3.2 3.2 3.2<br />
Total UDL kn 3:1 30 30 35 30 30<br />
95 148 100<br />
Total UDL kn 19:1 20 22 30 25 26<br />
HD/K-150 range is also available to suit 150mm wide inner leaf e.g. specify HD/K-150 WIL.<br />
CFS/K-150<br />
Manufactured Length 600 1650 2250 3150 4200<br />
in 150mm increments 1500 2100 3000 4000 4800<br />
229<br />
Height ‘h’ 229 229 229 229 229<br />
Thickness 2.9 2.9 2.9 3.2 3.2<br />
Total UDL kn 19:1 70 60 50 45 40<br />
95 148 100<br />
CFS/K-150 range is also available to suit 150mm wide inner leaf e.g. specify CFS/K-150 WIL.<br />
To achieve loading figures, lintel must be built in with blockwork as shown.<br />
16
CPD Online: www.keystonelintels.co.uk/cpd<br />
50-<strong>11</strong>0mm Cavity<br />
X/K-50/70/90<br />
Galvanised steel<br />
flange to outer leaf<br />
203 x 133 x 30kg/m UB<br />
inner leaf<br />
Manufactured Length to 600<br />
customers requirements 4800 5200 5400 5800 6200 6600<br />
Extra Heavy Duty <strong>Lintel</strong>s<br />
End bearing 200 200 200 200 200 200<br />
Total UDL kn 86 75 70 65 60 55<br />
To achieve loading figures, lintel must be laterally restrained. <strong>Lintel</strong> must be suitably propped during construction.<br />
X/K lintel range is available to suit <strong>11</strong>0-165mm cavity widths, e.g. specify X/K-<strong>11</strong>0, X/K-130 and X/K-150.<br />
Nominal<br />
X/K-50/70/90 WIL<br />
Galvanised steel<br />
flange to outer leaf<br />
203 x 133 x 30kg/m UB<br />
inner leaf<br />
150mm wide inner leaf<br />
Manufactured Length to 600<br />
customers requirements 4800 5200 5400 5800 6200 6600<br />
End bearing 200 200 200 200 200 200<br />
Total UDL kn 86 75 70 65 60 55<br />
To achieve loading figures, lintel must be laterally restrained. <strong>Lintel</strong> must be suitably propped during construction.<br />
X/K WIL lintel range is available to suit <strong>11</strong>0-165mm cavity widths, e.g. specify X/K-<strong>11</strong>0, X/K-130 and X/K-150.<br />
X/K-50/70/90 215 WIL<br />
Galvanised steel<br />
flange to outer leaf<br />
Nominal<br />
203 x 133 x 30kg/m UB<br />
inner leaf<br />
215mm wide inner leaf<br />
Manufactured Length to 600<br />
customers requirements 4800 5200 5400 5800 6200 6600<br />
End bearing 200 200 200 200 200 200<br />
Total UDL kn 86 75 70 65 60 55<br />
To achieve loading figures, lintel must be laterally restrained. <strong>Lintel</strong> must be suitably propped during construction.<br />
X/K 215 lintel range is available to suit <strong>11</strong>0-165mm cavity widths, e.g. specify X/K-<strong>11</strong>0, X/K-130 and X/K-150.<br />
IBX/K<br />
Galvanised steel<br />
flange to outer leaf<br />
Nominal<br />
230 x 90 x 32.76kg/m PFC<br />
inner leaf<br />
215mm wide solid wall<br />
Manufactured Length to 600<br />
customers requirements 4800 5200 5400 5800 6200 6600<br />
End bearing 200 200 200 200 200 200<br />
Total UDL kn 86 75 70 65 60 55<br />
To achieve loading figures, lintel must be laterally restrained. <strong>Lintel</strong> must be built in with block/brickwork as shown<br />
and suitably propped during construction.<br />
195<br />
*Continuous Bottom Plate<br />
17
Eaves <strong>Lintel</strong>s and Arch Boards<br />
EL/K-50<br />
To suit cavity 50-80mm<br />
Manufactured Length 600 1650 2250 2550<br />
in 150mm increments 1500 2100 2400 2700<br />
Height ‘h’ 95 134 150 150<br />
Thickness 2 2 2 2.5<br />
Total UDL kn 18 20 22 25<br />
40 48 100<br />
The EL/K-50 range can be supplied to suit 150mm inner leaf e.g.specify EL/K-50 WIL.<br />
For standard loading conditions at eaves level as a composite beam. To achieve loading figures lintel must be built in<br />
with blockwork and wall plate as shown.<br />
EL/K-90<br />
To suit cavity 85-120mm<br />
Manufactured Length 600 1650 2250 2550<br />
in 150mm increments 1500 2100 2400 2700<br />
Height ‘h’ 95 134 150 150<br />
Thickness 2 2 2 2.5<br />
Total UDL kn 18 20 22 25<br />
40 88 100<br />
The EL/K-90 range can be supplied to suit 150mm inner leaf e.g.specify EL/K-90 WIL.<br />
For standard loading conditions at eaves level as a composite beam. To achieve loading figures lintel must be built in<br />
with blockwork and wall plate as shown.<br />
Arch Board<br />
The Keystone Arch Board is available from<br />
stock in white plastic. This product is also<br />
available in a soft wood e.g. specify AB0925SW.<br />
18<br />
Nominal Arch Span Rise (mm) Plastic Code<br />
450-500 475 75 AB 0475P<br />
600-650 625 75 AB 0625P<br />
655-705 680 75 AB 0680P<br />
725-775 750 75 AB 0750P<br />
800-850 825 75 AB 0825P<br />
900-950 925 75 AB 0925P<br />
1025-1075 1050 75 AB 1050P<br />
1075-<strong>11</strong>75 <strong>11</strong>35 75 AB <strong>11</strong>35P<br />
1200-1250 1225 75 AB 1225P<br />
1325-1375 1350 75 AB 1350P<br />
1460-1510 1485 75 AB 1485P<br />
1500-1550 1525 75 AB 1525P<br />
1600-1650 1625 75 AB 1625P<br />
1675-1725 1700 75 AB 1700P<br />
1760-1810 1785 75 AB 1785P<br />
1900-1950 1925 150 AB 1925P<br />
1950-2000 1975 150 AB 1975P<br />
2100-2150 2125 150 AB 2125P<br />
2225-2275 2250 150 AB 2250P<br />
2300-2350 2325 150 AB 2325P<br />
2400-2450 2425 150 AB 2425P<br />
2550-2600 2575 150 AB 2575P
CPD Online: www.keystonelintels.co.uk/cpd<br />
Solid Wall <strong>Lintel</strong>s<br />
INT/K-100<br />
100<br />
<br />
Max Span 700 850 900 1000<br />
28<br />
Total UDL kn with<br />
150mm coursing<br />
Total UDL kn with<br />
225mm coursing<br />
5 5 5 5<br />
10 10 10 10<br />
For standard loading conditions to support internal openings in 100mm thick walls. The INT/K range can be supplied<br />
to suit 75mm wide walls e.g. specify INT/K 60.<br />
SW/K<br />
Manufactured Length 600 1350 1800 2250<br />
in 150mm increments 1200 1650 2100 2700<br />
Height ‘h’ 55 86 86 <strong>11</strong>3<br />
‘h’ nominal<br />
Thickness 2.5 2.5 2.9 3.2<br />
195<br />
Total UDL kn 6 8 8 10<br />
For light duty loading conditions for 215mm solid wall construction.<br />
To achieve loading figures, lintel must be built in with block/brickwork as shown and suitably propped during construction.<br />
IB/K (2c)<br />
Manufactured Length 600 1950 2250<br />
in 150mm increments 1800 2100 3000<br />
152<br />
Height ‘h’ 152 152 152<br />
Thickness 2.5 2.9 3.2<br />
195<br />
Total UDL kn 30 30 30<br />
For heavy duty loading conditions for 215mm solid wall construction.<br />
To achieve loading figures, lintel must be built in with block/brickwork as shown and suitably propped during construction.<br />
IB/K (3c)<br />
Manufactured Length 600 1950 2250 3150 4200<br />
in 150mm increments 1800 2100 3000 4000 4800<br />
Height ‘h’ 227 227 227 227 227<br />
227<br />
Thickness 2.5 2.5 2.9 3.2 3.2<br />
Total UDL kn 45 40 40 40 35<br />
195<br />
For heavy duty loading conditions for 215mm solid wall construction.<br />
To achieve loading figures, lintel must be built in with block/brickwork as shown and suitably propped during construction.<br />
19
Single Leaf <strong>Lintel</strong>s<br />
SB/K<br />
Manufactured Length 600 1500 1950 2400<br />
in 150mm increments 1350 1800 2250 2700<br />
Height ‘h’ 80 100 150 200<br />
Thickness 3.2 3.2 3.2 3.2<br />
‘h’ nominal<br />
SL/K<br />
95<br />
Optional factory fitted Cavity Closer<br />
(spec. SB/Kcc)<br />
Total UDL kn 2.5 5 7 8<br />
For use to support the outer leaf of cavity wall construction.<br />
The SB/K lintel should be suitably propped during construction. The SB/K lintel can be supplied with no top bend<br />
(e.g.specify ANG/K).<br />
Manufactured Length 600 1500 1950 2550 2850<br />
in 150mm increments 1350 1800 2400 2700 3000<br />
‘h’ nominal<br />
95<br />
Height ‘h’ 150 150 225 225 225<br />
Thickness 2.5 2.5 2.5 2.9 3.2<br />
Total UDL kn 16 20 20 12 12<br />
For use to support single leaf or outer leaf of cavity wall construction.<br />
To achieve loading figures, lintel must be built in with brickwork as shown and be suitably propped during construction.<br />
SW/K-100<br />
Manufactured Length 600 1350 1800 2250<br />
in 150mm increments 1200 1650 2100 2700<br />
Height ‘h’ 55 86 86 <strong>11</strong>3<br />
Thickness 2.5 2.5 2.9 3.2<br />
‘h’ nominal<br />
Total UDL kn 6 8 8 10<br />
95<br />
Suitable for 100mm and 150mm wide solid walls. To achieve loading figures, lintel must be built in with<br />
block/brickwork as shown and suitably propped during construction.<br />
B/K-50/70/90<br />
Manufactured Length 600 2250 2550 3150<br />
in 150mm increments 2100 2400 3000 4800<br />
Height ‘h’ 150 225 225 225<br />
Thickness 2.5 2.5 2.9 3.2<br />
‘h’ nominal<br />
Total UDL kn 7 8 10 12<br />
95 Nominal<br />
For use with inner leaf concrete lintel. The B/K lintel must be used in conjunction with a tight fitting timber batten, as<br />
shown, to prevent twisting. The B/K range can be supplied to suit wider cavities: e.g. specify B/K-70, B/K-90.<br />
20
CPD Online: www.keystonelintels.co.uk/cpd<br />
Single Leaf <strong>Lintel</strong>s<br />
T/K-50/70/90<br />
Lateral restraint clips at 500mm centres<br />
fixed with 4mm x 50mm galvanised nails<br />
Manufactured Length 600 1800 2550 3150<br />
in 150mm increments 1650 2400 3000 4800<br />
Height ‘h’ 102 155 185 250<br />
Thickness 2.5 2.5 2.9 3.2<br />
Total UDL kn 5 8 9 12<br />
‘h’ nominal<br />
For use with timber frame construction. The T/K lintel must be used in conjunction with lateral restraint clips and a<br />
tight fitting timber batten, as shown, to prevent twisting. The T/K range can be supplied to suit wider cavities:<br />
e.g. specify T/K-70, T/K-90.<br />
95<br />
Nominal<br />
HDT/K-50/70/90<br />
Lateral restraint clips at 500mm centres<br />
fixed with 4mm x 50mm galvanised nails<br />
Manufactured Length 600 1800 2550<br />
in 150mm increments 1650 2400 3000<br />
Height ‘h’ 155 185 250<br />
Thickness 2.5 2.9 3.2<br />
‘h’ nominal<br />
Total UDL kn 10 12 12<br />
For use with timber frame construction. The T/K lintel must be used in conjunction with lateral restraint clips and a<br />
tight fitting timber batten, as shown, to prevent twisting. The T/K range can be supplied to suit wider cavities:<br />
e.g. specify T/K-70, T/K-90.<br />
95<br />
Nominal<br />
XHDT/K-50/70/90<br />
Lateral restraint clips at 500mm centres<br />
fixed with 4mm x 50mm galvanised nails<br />
Manufactured Length 600 3150<br />
in 150mm increments 3000 4800<br />
Height ‘h’ 250 250<br />
Thickness 2.9 3.2<br />
‘h’ nominal<br />
Total UDL kn 18 18<br />
For use with timber frame construction. The T/K lintel must be used in conjunction with lateral restraint clips and a<br />
tight fitting timber batten, as shown, to prevent twisting. The T/K range can be supplied to suit wider cavities:<br />
e.g. specify T/K-70, T/K-90.<br />
95<br />
Nominal<br />
RB/K-50/70/90<br />
Manufactured Length 600 1650 2550 3150<br />
in 150mm increments 1500 2400 3000 4800<br />
Height ‘h’ 175 200 250 250<br />
Thickness 2.5 2.9 2.9 3.2<br />
Total UDL kn/m 7.5 7.5 7.5 7.5<br />
For use with integral concrete ring beams. The RB/K type lintel must be bolted to the concrete ring beam at 400mm<br />
c/c using M16 rawl bolts. The RB/K type range can be supplied to facilitate various cavity widths: e.g. specify RB/K-50,<br />
RB/K-70, RB/K-90.<br />
95 Nominal<br />
21
Box <strong>Lintel</strong>s<br />
BOX/K-60<br />
95<br />
75<br />
Manufactured Length 600 1650<br />
in 150mm increments 1500 1800<br />
Height ‘h’ 95 95<br />
Perforated steel for plaster key<br />
Thickness 1.6 1.6<br />
Total UDL kn 15 10<br />
Used to support internal openings in 75mm wide walls. (Can be insulated as optional extra).<br />
BOX/K-75<br />
75<br />
95<br />
Perforated steel for plaster key<br />
Manufactured Length 600<br />
in 150mm increments 1650 1800<br />
Height ‘h’ 75 75<br />
Thickness 1.6 2<br />
Total UDL kn 15 10<br />
Used to support internal openings in 100mm wide walls. (Can be insulated as optional extra).<br />
BOX/K-100<br />
95<br />
95<br />
Manufactured Length 600 1650 1950 2550 2850 3750 4200<br />
in 150mm increments 1500 1800 2400 2700 3600 4000 4800<br />
95<br />
150<br />
215<br />
Height ‘h’ 75 150 150 150 215 215 215<br />
75<br />
Thickness 2 1.6 2 2 2.5 2.5 2.5<br />
Total UDL kn 18 18 25 20 35 30 24<br />
Perforated steel for plaster key<br />
Used to support internal or external openings with 100mm wide walls. (Can be insulated as optional extra).<br />
HDBOX/K-100<br />
Manufactured Length 600 1350 1950<br />
in 150mm increments 1200 1800 2700<br />
‘h’ nominal<br />
Height ‘h’ 150 150 215<br />
Thickness 2.5 2.5 2.5<br />
Perforated steel for plaster key<br />
95<br />
Total UDL kn 50 45 40<br />
For heavy duty loading conditions to support internal or external openings with 100mm wide wall. (Can be insulated<br />
as optional extra).<br />
22
CPD Online: www.keystonelintels.co.uk/cpd<br />
Box <strong>Lintel</strong>s<br />
BOX/K-150<br />
‘h’ nominal<br />
145<br />
Manufactured Length 600 1950 2550 2850 3750 4200<br />
in 150mm increments 1800 2400 2700 3600 4000 4800<br />
Height ‘h’ 150 150 150 215 215 215<br />
Thickness 1.6 2 2 2.5 2.5 2.5<br />
Perforated steel for plaster key<br />
Total UDL kn 18 25 20 35 30 24<br />
Used to support internal or external openings with 150mm wide walls. (Can be insulated as optional extra).<br />
HDBOX/K-150<br />
Manufactured Length 600 1350 1950<br />
in 150mm increments 1200 1800 2700<br />
‘h’ nominal<br />
Height ‘h’ 150 150 215<br />
Thickness 2.5 2.5 2.5<br />
Perforated steel for plaster key<br />
145<br />
Total UDL kn 50 45 40<br />
For heavy duty loading conditions to support internal or external openings with 150mm wide wall. (Can be insulated<br />
as optional extra).<br />
BOX/K-200<br />
Manufactured Length 600 1950 2550 2850 3750 4200<br />
in 150mm increments 1800 2400 2700 3600 4000 4800<br />
Height ‘h’ 150 150 150 215 215 215<br />
Thickness 1.6 2 2 2.5 2.5 2.5<br />
‘h’ nominal<br />
Total UDL kn 18 25 20 35 30 24<br />
Used to support internal or external openings with 215mm wide wall. (Can be insulated as optional extra).<br />
200<br />
Perforated steel for plaster key<br />
HDBOX/K-200<br />
Manufactured Length 600 1350 1950<br />
in 150mm increments 1200 1800 2700<br />
Height ‘h’ 150 150 215<br />
Thickness 2.5 2.5 2.5<br />
‘h’ nominal<br />
Total UDL kn 50 45 40<br />
For heavy duty loading conditions to support internal or external openings with 215mm wide wall. (Can be insulated<br />
as optional extra).<br />
200<br />
Perforated steel for plaster key<br />
23
Thin Joint Cavity <strong>Lintel</strong> System<br />
Standard Loading<br />
A New Development in<br />
Cavity Wall Construction<br />
The TJ/K lintel range enables fastrack<br />
construction of the structural internal<br />
leaf before the external leaf is built*<br />
Fully Insulated Cavity<br />
Thermal Break Plate<br />
Part ‘L’ Compliant<br />
Award-winning Earthdome specifies Keystone TJ/K <strong>Lintel</strong><br />
The Secretary of State for Trade and Industry, presented the Earthdome project with top<br />
environmental award.<br />
Earthdome is a pioneering project where super thermally efficient, ecologically sound and<br />
hypo-allergenic homes are being constructed using the most thermally efficient materials<br />
available - Keystone’s Thin-Joint lintels fitted the bill!<br />
The Earthdome Eco project won the prestigious Green Apple Environment Award. It was<br />
selected to be ‘British Green Champion’ - top of it’s class for Fuel Power & Energy’. Winning<br />
this award is likely to give this innovative project access to European Environmental Awards.<br />
TJ/K-50<br />
Lateral restraint clips at 500mm centres<br />
fixed with 4mm x 50mm galvanised nails<br />
Level uniform<br />
surface for<br />
3mm joint<br />
Manufactured Length 600 1650 1950 2250 2850<br />
in 150mm increments 1500 1800 2100 2700 3000<br />
Specification A B C D E<br />
Height ‘h’ 130 160 225 225 225<br />
‘h’ nominal<br />
Extended C<br />
section 225mm<br />
high for lintels<br />
greater than<br />
1800mm<br />
Thickness 5 5 3.2 5 5<br />
Total UDL (Kn)<br />
Internal Leaf<br />
Total UDL (Kn)<br />
External Leaf<br />
10 15 18 27 25<br />
3 5 8 9 10<br />
95 48 100<br />
Thermal Break Plate<br />
Part ‘L’ compliant<br />
For standard loading conditions in 50mm wide thin joint cavity wall construction. To achieve loading figures lintels<br />
must be built in as shown with firmly butted perpendicular joints. The TJ/K lintel range can be supplied to suit wider<br />
cavities e.g. specify TJ/K-70, TJ/K-90.<br />
24<br />
Note: For other loading conditions contact the Keystone Technical Dept.<br />
*Subject to structural conditions
CPD Online: www.keystonelintels.co.uk/cpd<br />
Thin Joint Solid Wall <strong>Lintel</strong>s<br />
The TW/K lintel range has been<br />
developed by Keystone for use<br />
over openings in thin joint solid<br />
wall construction.<br />
External Cladding<br />
Thermal Break<br />
(Part ‘L’ Compliant)<br />
TW/K-215<br />
Cold Outer Surface<br />
Manufactured Length 600 1350 1800 2250<br />
in 150mm increments 1200 1650 2100 2700<br />
Warm Inner Surface<br />
Height ‘h’ 55 86 86 <strong>11</strong>3<br />
‘h’ nominal<br />
195<br />
Thermal Break<br />
Thickness 2.5 2.5 2.9 3.2<br />
Total UDL kn 6 8 8 10<br />
For light duty loading conditions for 215mm solid wall construction.<br />
To achieve loading figures, lintel must be built in with block/brickwork as shown and suitably propped during construction.<br />
The TW/K lintel range is available to suit 250 to 300mm wide walls e.g. specify TW/K-250, TW/K-300.<br />
HDTW/K-215<br />
Manufactured Length 600 1950 2250<br />
in 150mm increments 1800 2100 3000<br />
Height ‘h’ 152 152 152<br />
Thickness 2.5 2.9 3.2<br />
Total UDL kn 20 22 27<br />
150<br />
195<br />
Thermal Break<br />
ITW/K-215<br />
For heavy duty loading conditions for 215mm solid wall construction.<br />
To achieve loading figures, lintel must be built in with block/brickwork as shown and suitably propped during construction.<br />
The HDTW/K lintel range is available to suit 250 to 300mm wide walls e.g. specify HDTW/K-250, HDTW/K-300.<br />
Manufactured Length 600 1950 2250 3150 4200<br />
in 150mm increments 1800 2100 3000 4000 4800<br />
Height ‘h’ 227 227 227 227 227<br />
Thickness 2.5 2.5 2.9 3.2 3.2<br />
Total UDL kn 45 40 40 40 35<br />
227<br />
For heavy duty loading conditions for 215mm solid wall construction.<br />
To achieve loading figures, lintel must be built in with block/brickwork as shown and suitably propped during construction.<br />
The ITW/K lintel range is available to suit 250 to 300mm wide walls e.g. specify ITW/K-250, ITW/K-300.<br />
195<br />
Thermal Break<br />
25
Cavity Trays<br />
A Unique Single Element<br />
Cavity Tray System<br />
Unique Products with<br />
<br />
Available off-the-shelf in easy-to-handle<br />
flat packs<br />
Easy to calculate quantities, transport, use<br />
and adapt<br />
Three sizes cover all roof pitches and cavity<br />
widths<br />
Impact, tear and abuse resistant<br />
thermostable polypropylene 0.8mm thick<br />
Compatible with all building materials<br />
Resistant to acid, alkali and sulphate<br />
Meets all current Building Regulations and<br />
NHBC requirements<br />
Will last the lifetime of the building<br />
The most cost-effective cavity tray system<br />
available<br />
Available from a national network of stockists<br />
Gable Abutment<br />
Refurbishment<br />
26
CPD Online: www.keystonelintels.co.uk/cpd<br />
Cavity Trays<br />
Gable Abutment System<br />
When a stepped or staggered gable abutment<br />
is formed the status of the external skin below<br />
the roof line changes to that of an internal<br />
skin. Accordingly, every gable abutment must<br />
be constructed so as to prevent dampness and<br />
rainwater from penetrating below the abutting<br />
roof line.<br />
The Keystone gable abutment cavity tray forms<br />
a stepped cavity dpc which is incorporated into<br />
the building during bricklaying. The completed<br />
structure is ready to receive roof lead flashing<br />
in the conventional way.<br />
The Keystone Cavity Tray - Type GA<br />
Manufactured from polypropylene, the<br />
Keystone gable abutment cavity tray is<br />
available in three sizes to suit all roof pitches<br />
up to 60°. It is suitable for use in all brick, block<br />
and timber-framed constructions, the large<br />
bridging piece catering for cavity widths from<br />
50mm to 100mm.<br />
Supplied flat, the pre-creased trays allow for<br />
easy on-site folding to the required shape -<br />
catchment, left and right hand or ridge tray. A<br />
locating lip facilitates the accurate placement<br />
of trays during bricklaying.<br />
Calculating Quantities<br />
The single-element system makes the<br />
calculation of quantities very simple. Whether<br />
you are building with bricks or blocks the rule<br />
is the same: you require one cavity tray per<br />
course per slope. On a double slope roof this<br />
calculation will give you an extra tray that can<br />
be used to lengthen the ridge tray if required.<br />
<br />
The Keystone gable abutment cavity tray is<br />
available in three sizes. Trays are supplied in<br />
shrink-wrapped flat packs in the quantities<br />
indicated or as single items.<br />
<br />
Construction Pitch in mm of:<br />
Brickwork 22.5º-60º GA1 375x310 50or10<br />
Blockwork more than 45º<br />
Brickwork 15º-30º GA2 525x310 5<br />
Blockwork 35º-45º<br />
Brickwork less than 15º GA3 675x310 5<br />
Blockwork 25º-40º<br />
Note: All packs contain full installation instructions and<br />
folding instructions are printed on each tray<br />
Internal / External Corners<br />
Flat-packed foldable corners complete the<br />
Keystone gable abutment cavity tray system.<br />
Both internal (GAIC) and external (GAEC)<br />
corner trays comprise factory-jointed twopiece<br />
assemblies that are folded on site to form<br />
right-angled corners. The trays are pre-creased<br />
and incorporate adjustment for 50mm, 75mm<br />
or 100mm cavity widths and incorporate<br />
mastic sealant strips for overlapping areas.<br />
Refurbishment System<br />
The Keystone refurbishment cavity trays<br />
system has been specifically developed to<br />
facilitate both the insertion of a new tray into<br />
an existing wall and the repair or alteration of<br />
an existing damp proof course.<br />
Where to Use<br />
Where a new lean-to extension meets an<br />
existing building, the original external wall<br />
becomes an internal partition below the roof<br />
line and must be protected from dampness and<br />
the penetration of rainwater. Similarly, when a<br />
flat roof is resurfaced with added insulation,<br />
or is reconstructed as an inverted roof with<br />
top paving, the roof level may be raised and<br />
thus require the skirting and its corresponding<br />
damp proof course to be lifted.<br />
In addition, existing cavity trays which have<br />
been poorly constructed or have rotted allowing<br />
water to leak through must be replaced.<br />
<br />
Available off-the-shelf in flat-packs, the<br />
Keystone refurbishment tray combines ease<br />
of handling, transportation and use with<br />
complete effectiveness. It meets all current<br />
building regulations and NHBC requirements.<br />
Manufactured from polypropylene, the<br />
Keystone refurbishment tray is 620mm wide by<br />
280mm deep and is suitable for use in all brick,<br />
block and timber-framed constructions. The<br />
large bridging piece caters for cavity widths<br />
from 50mm to 100mm.<br />
Supplied flat, the pre-creased trays allow for<br />
easy on-site folding to the required shape<br />
including forming left and right hand end stops.<br />
A locating lip facilitates accurate placement<br />
during installation and the mastic sealant strip<br />
(protected by release paper) ensures easy and<br />
watertight overlap jointing.<br />
Specifying<br />
When specifying, the following wording is<br />
recommended: “provide Keystone refurbishment<br />
Cavity Tray system from Keystone <strong>Lintel</strong>s<br />
Limited, (+44 (0)1283 200150) to be installed<br />
as per manufacturer’s instructions. Trays to be<br />
folded, as instructions on tray, to form left and<br />
right hand stop-ends”.<br />
Refurbishment Cavity Trays<br />
Code Size in mm Packs of:<br />
RFT 620 x 280 10<br />
27
CPD Online: www.keystonelintels.co.uk/cpd<br />
Extended Range<br />
Stainless Steel <strong>Lintel</strong>s<br />
The following lintels are also available in 3mm thick stainless steel, grade 304S15. Similar load tables apply for stainless steel (SS) lintels as for<br />
galvanised lintels. The stainless steel range is available to suit all cavity widths<br />
S/K (SS) HD/K (SS) S/K WIL (SS) HD/K WIL (SS) CFS/K (SS) CFS/K WIL (SS) X/K (SS)<br />
S/K 215 WIL (SS) SB/K (SS) SL/K (SS) B/K (SS) SW/K (SS) RB/K (SS) BOX/K (SS)<br />
Soffit <strong>Lintel</strong> Cant Brick <strong>Lintel</strong> Stepped <strong>Lintel</strong><br />
A Soffit plate can be supplied on all lintel<br />
profiles to suit 50-165mm wide cavities.<br />
The Cant Brick <strong>Lintel</strong> can be supplied to suit all<br />
<strong>Lintel</strong> profiles for 50-165mm wide cavities.<br />
All cavity <strong>Lintel</strong>s in the Keystone range can be<br />
supplied with a 20mm step upon request.<br />
‘h’ nominal<br />
95 nominal 100<br />
20<br />
Roller Shutter <strong>Lintel</strong>s<br />
The Roller Shutter <strong>Lintel</strong> can be supplied to suit<br />
all wall constructions and loading conditions.<br />
Contact Keystone Technical Department for<br />
full specification.<br />
A B C<br />
dpc<br />
Dimensions Required:<br />
A =<br />
B =<br />
C =<br />
H =<br />
mm<br />
mm<br />
mm<br />
mm<br />
H<br />
<strong>Lintel</strong> Length =<br />
mm<br />
95<br />
28
From Europe’s largest manufacturer of Steel <strong>Lintel</strong>s<br />
29
Your custom-made world by<br />
Welcome to the wonderful world of Keystone ‘Special’ <strong>Lintel</strong>s. Keystone <strong>Lintel</strong>s is a well-established brand within the<br />
construction industry, and renowned for providing lintel solutions to architects, builders, merchants, and end-users. As<br />
part of Keystone Group, Keystone <strong>Lintel</strong>s is leading the way in bespoke Steel <strong>Lintel</strong> design and manufacture.<br />
The Technical Team at Keystone are pushing back the boundaries in Steel <strong>Lintel</strong> design, providing custom-made lintels<br />
with short lead-times. For further information on the following lintels or to discuss your ‘special ideas’ please contact<br />
our technical department.<br />
31
Full Arch <strong>Lintel</strong><br />
R<br />
c<br />
(clear span) a<br />
Elevation<br />
c<br />
<strong>Lintel</strong> Dimensions:<br />
Wall Construction:<br />
Clear span a =<br />
mm<br />
Outer leaf<br />
mm<br />
Radius R =<br />
mm<br />
Cavity width<br />
mm<br />
End bearing c =<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
Segmental Arch <strong>Lintel</strong><br />
r<br />
c<br />
(clear span) a<br />
Elevation<br />
c<br />
<strong>Lintel</strong> Dimensions:<br />
Wall Construction:<br />
Clear span a =<br />
mm<br />
Outer leaf<br />
mm<br />
Rise r =<br />
mm<br />
Cavity width<br />
mm<br />
End bearing c =<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
32
CPD Online: www.keystonelintels.co.uk/cpd<br />
Venetian Arch <strong>Lintel</strong><br />
Elevation<br />
r<br />
c<br />
(arch span) a2<br />
(overall clear span) a1<br />
c<br />
<strong>Lintel</strong> Dimensions:<br />
Wall Construction:<br />
Overall clear span a1 =<br />
mm<br />
Outer leaf<br />
mm<br />
Arch span a2 =<br />
mm<br />
Cavity width<br />
mm<br />
Rise r =<br />
mm<br />
Inner leaf<br />
mm<br />
End bearing c =<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Arch Type: (please tick)<br />
Inside only<br />
Full Arch<br />
Both sides<br />
Segmental Arch<br />
None<br />
Parabolic Arch<br />
Support Posts: (if required)<br />
Apex Arch<br />
Height<br />
mm<br />
Gothic Arch<br />
Apex Arch <strong>Lintel</strong><br />
r<br />
c<br />
(clear span) a<br />
c<br />
Elevation<br />
<strong>Lintel</strong> Dimensions:<br />
Wall Construction:<br />
Clear span a =<br />
mm<br />
Outer leaf<br />
mm<br />
Rise r =<br />
mm<br />
Cavity width<br />
mm<br />
End bearing c =<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
33
Parabolic Arch <strong>Lintel</strong><br />
To construct a Parabolic Curve<br />
D<br />
E<br />
C<br />
1<br />
<br />
A<br />
r<br />
B<br />
Draw rectangle ABCD<br />
Make DE = DA<br />
Make CF = CE<br />
Bisect AF to make point 1<br />
Project a right angle off AF at point 1<br />
to find small radius r,<br />
and project further to find large radius R<br />
R<br />
r<br />
c<br />
(clear span) a<br />
Elevation<br />
c<br />
<strong>Lintel</strong> Dimensions:<br />
Wall Construction:<br />
Clear span a =<br />
mm<br />
Outer leaf<br />
mm<br />
Rise r =<br />
mm<br />
Cavity width<br />
mm<br />
End bearing c =<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
34
CPD Online: www.keystonelintels.co.uk/cpd<br />
Gothic Arch <strong>Lintel</strong> (Single Radius)<br />
r<br />
c<br />
(clear span) a<br />
Elevation<br />
Radius<br />
c<br />
<strong>Lintel</strong> Dimensions:<br />
Wall Construction:<br />
Clear span a =<br />
mm<br />
Outer leaf<br />
mm<br />
Rise r =<br />
mm<br />
Cavity width<br />
mm<br />
End bearing c =<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Radius: (if known)<br />
Inside only<br />
Radius<br />
mm<br />
Both sides<br />
None<br />
Gothic Arch <strong>Lintel</strong> (Double Radius)<br />
r<br />
c<br />
<strong>Lintel</strong> Dimensions:<br />
Small Radius<br />
(clear span) a<br />
Elevation<br />
Large Radius<br />
Radius: (if known)<br />
c<br />
Clear span a =<br />
mm<br />
Large Radius<br />
mm<br />
Rise r =<br />
mm<br />
Small Radius<br />
mm<br />
End bearing c =<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
r<br />
Small Radius<br />
Wall Construction:<br />
Outer leaf<br />
Cavity width<br />
Inner leaf<br />
mm<br />
mm<br />
mm<br />
Double Radius<br />
Large<br />
Radius<br />
35
Corner <strong>Lintel</strong><br />
Section through corner<br />
and post supported on<br />
substructure<br />
The Keystone Corner <strong>Lintel</strong> is<br />
supplied as a ‘one piece’ fully<br />
mitred and welded structural unit<br />
for easy installation.<br />
Fully Filled<br />
Insulated Cavity<br />
Factory mitred and<br />
welded corner lintel<br />
Location Spigot<br />
Steel Corner Post<br />
dimension by<br />
Keystone<br />
Technical Dept.<br />
Cill notched<br />
around post<br />
Base Plate bolted to<br />
substructure using<br />
12mm dia fixing bolts<br />
Factory fitted<br />
Location Spigot<br />
Steel Corner Post<br />
supplied with <strong>Lintel</strong><br />
Dimensions by Keystone<br />
Technical Dept.<br />
Spot Welded<br />
Plaster Key<br />
DPC stepped across<br />
cavity, laid under and<br />
turned up back of cill<br />
Cill detail<br />
Base Plate<br />
Heavy Duty<br />
Corner <strong>Lintel</strong><br />
Dimensions Required:<br />
A<br />
Brick Reveal<br />
A-B =<br />
B-C =<br />
A-C =<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
mm<br />
mm<br />
mm<br />
B<br />
Brick Reveal<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
C<br />
Wall Construction:<br />
Outer leaf<br />
Cavity width<br />
Inner leaf<br />
mm<br />
mm<br />
mm<br />
Support Post:<br />
Height<br />
mm<br />
36
CPD Online: www.keystonelintels.co.uk/cpd<br />
Bow <strong>Lintel</strong> (Projecting Reveals)<br />
Span<br />
C<br />
A<br />
Outshot<br />
D<br />
Brick Reveal<br />
Straight Edge<br />
Brick Reveal<br />
B<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
C-D =<br />
mm<br />
Cavity width<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Support Posts:<br />
Inside only<br />
Height<br />
mm<br />
Both sides<br />
None<br />
Bow <strong>Lintel</strong> (Non Projecting Reveals)<br />
A<br />
Span<br />
C<br />
Outshot<br />
B<br />
Brick Reveal<br />
D<br />
Straight Edge<br />
Brick Reveal<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
C-D =<br />
mm<br />
Cavity width<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Support Posts:<br />
Inside only<br />
Height<br />
mm<br />
Both sides<br />
None<br />
37
Square Bay <strong>Lintel</strong><br />
Keystone provide arches and bow<br />
lintels, corner and sun lounge<br />
lintels, as well as solutions for<br />
splayed and square bay lintels.<br />
Exploded isometric<br />
view of Square Bay<br />
<strong>Lintel</strong> supported on<br />
substructure<br />
250<br />
Base Plate<br />
Post dimensions by<br />
Keystone Technical<br />
Dept.<br />
350<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
A<br />
Brick Reveal<br />
Brick Reveal<br />
D<br />
B<br />
C<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
B-C =<br />
mm<br />
Cavity width<br />
mm<br />
C-D =<br />
mm<br />
Inner leaf<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
Support Posts:<br />
Height<br />
mm<br />
None<br />
38
CPD Online: www.keystonelintels.co.uk/cpd<br />
Splayed Bay <strong>Lintel</strong> (Projecting Reveals)<br />
Brick Reveal<br />
Brick Reveal<br />
A<br />
D<br />
Important Notes:<br />
Do not allow<br />
for bearing, this<br />
will be added at<br />
manufacturing stage.<br />
Very accurate<br />
measurements required.<br />
B<br />
C<br />
Base Plate<br />
Post dimensions by<br />
Keystone Technical<br />
Dept.<br />
To Clients<br />
specification<br />
Xº<br />
250<br />
250<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
B-C =<br />
mm<br />
Cavity width<br />
mm<br />
C-D =<br />
mm<br />
Inner leaf<br />
mm<br />
A-D =<br />
mm<br />
A-C =<br />
mm<br />
Support Posts:<br />
B-D =<br />
mm<br />
Height<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
Splayed Bay <strong>Lintel</strong> (Non Projecting Reveals)<br />
Brick Reveal<br />
Brick Reveal<br />
A<br />
D<br />
Important Notes:<br />
Do not allow for bearing,<br />
this will be added at<br />
manufacturing stage.<br />
Very accurate<br />
measurements required.<br />
B<br />
C<br />
Base Plate<br />
Post dimensions by<br />
Keystone Technical<br />
Dept.<br />
To Clients<br />
specification<br />
Xº<br />
250<br />
250<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
B-C =<br />
mm<br />
Cavity width<br />
mm<br />
C-D =<br />
mm<br />
Inner leaf<br />
mm<br />
A-D =<br />
mm<br />
A-C =<br />
mm<br />
Support Posts:<br />
B-D =<br />
mm<br />
Height<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Inside only<br />
Both sides<br />
None<br />
39
Keystone Sun Lounge <strong>Lintel</strong><br />
Did you know?<br />
It is universally recognised amongst home owners and house builders that a Sun Lounge<br />
is a more practical, user friendly room than a conservatory. Furthermore it is agreed<br />
that a Sun Lounge floor area can be included in the overall measurement of your house<br />
size, adding much more value to your home.<br />
A Sun Lounge <strong>Lintel</strong> is an easy way to add space at low cost when building a new house, or extending a property. An<br />
extra room rather than an add-on, a Sun Lounge is comfortable all year round while allowing you to watch the seasons<br />
come and go in comfort.<br />
What does a Sun Lounge offer you?<br />
A Sun Lounge will blend with the existing appearance of your home. It’s easy to construct, using materials similar to your<br />
house. Also it adds genuine floor space, it is structurally sound and adds value immediately.<br />
Is the Sun Lounge the same as a conservatory?<br />
No! A Sun Lounge is more competitively priced than a conservatory, is more visually appealing, is easier to clean, and is<br />
not a bolt on “extra”.<br />
Much better heat retention in winter<br />
Protection from the blazing summer sun<br />
Noise reduction associated with rainfall on a conservatory roof<br />
What do Keystone offer?<br />
The construction of a Sun Lounge has been simplified by the introduction of an Keystone <strong>Lintel</strong>. It is a one piece unit<br />
which removes the need for local engineering, allows architects to design the Sun Lounge to suit the property, and will<br />
keep the cost sensible.<br />
The Keystone Sun Lounge <strong>Lintel</strong> is designed and delivered ready for erection.<br />
40
CPD Online: www.keystonelintels.co.uk/cpd<br />
Spot Welded Plaster Key<br />
Fully Filled Insulated Cavity<br />
It’s as easy as...<br />
Steel Corner Posts<br />
Dimensions by<br />
Keystone Technical Dept.<br />
Includes Base Plate<br />
Factory Fitted Location<br />
Spigots<br />
1 2 3<br />
The Sun Lounge <strong>Lintel</strong> can<br />
be supplied in any size to<br />
suit your requirements<br />
FASTRACK autoCAD files<br />
can be downloaded from<br />
our website at:<br />
www.keystonelintels.co.uk<br />
Width (W)<br />
Length (L)<br />
<br />
Sun Lounge Int Width (W) Int Length (L)<br />
A 3m 3m<br />
B 3m 3.6m<br />
C 3.6m 3.6m<br />
D 3.6m 4m<br />
E 4m 4m<br />
F 4m 4.6m<br />
41
Standard Sun Lounge <strong>Lintel</strong> - Construction Data<br />
Roof Construction:<br />
Slates or tiles to match existing on 25x50mm battens on one layer sarking felt on 38x150mm rafters @<br />
400mm CRS with 38x50mm battens to U/S of rafters to maintain 50mm airgap within roof construction<br />
when incorporating 150mm fibre glass quilt insulation. 50x100mm Ridge Plate shot fixed to T/S ridge<br />
beam. 50x100mm Wall Plate securely strapped down to wall using 5x30mm galv ms straps by Cullen or<br />
equal @ 1200mm CRS. 100x25mm diagonal bracing positioned both sides of roof. 38x100mm collar ties @<br />
400mm CRS. 50x250mm hip rafters. TG and V redwood sheeting ceiling painted with Class 1 SSF varnish. All<br />
structural timber to be C16 or greater and must be stamped accordingly.<br />
<strong>Lintel</strong> Specification:<br />
Keystone HD/K factory Sun Lounge <strong>Lintel</strong> supported on MS posts designed by Keystone Tech. Dept. located as<br />
indicated on plan.<br />
Structural Rigidity:<br />
Roof Anchorage - First rafter and collar tie to be bolted to main wall at 450mm CRS using Rawl bolts<br />
or similar proprietary fixing.<br />
MS support posts and factory fitted Base Plate to be bolted down on top of solid footings built up to<br />
300mm below finished floor level.<br />
Wracking resistance provided using 9mm plywood secured to U/S of rafters and collar ties prior to any<br />
decorative finishes.<br />
Where a raised or vaulted ceiling is required a Keystone Ridge Beam Cradle must be used.<br />
Construction Details:<br />
Provide 150mm fibreglass quilt insulation between roof rafters and collar ties. Insulation to be carried over<br />
top of cavity wall and pushed into soffit box to prevent a cold bridge. Install Cullen G400 eaves ventilators<br />
to provide a continuous air path for roof space ventilation between roof and insulation and roof underlay at<br />
eaves equivalent to 10,000mm 2 /m with Cullen G1200 over facia ventilator to provide ventilation to roof space<br />
equivalent 10,000mm 2 /m in accordance with Bld. Regs. Approved Document F2 1995 and or BS 5250: 1989.<br />
Fixed in accordance with manufacturers instructions.<br />
Provide stepped cavity tray across wall directly above Code No.4 flashing, where new roof abuts wall. Note<br />
all lead to be treated with patination oil. Rainwater goods facia and soffit to match existing. RC cill with<br />
DPC @ rear, ends and under. Wall DPC located min. 150mm above ground level. 300mm solid blockwork<br />
footings. 250mmx600mm concrete foundation. Form new opening from existing dwelling into Sun Lounge<br />
to client’s requirements.<br />
Provide vertical DPC where Sun Lounge window abuts existing wall. Where new wall abuts existing, new<br />
cavity to be continuous with existing cavity. Provide 35mm polystyrene insulation between MS post and<br />
against inner leaf where post is inside cavity, to prevent a cold bridge. All glazed panels to doors and side<br />
panels with glazing less than 1500mm above floor or ground level to be glazed with safety glass to BS<br />
6206: Class B and C.<br />
Provide 300mm cavity wall construction with 60mm Rigid Polystyrene Insulation - Wall ties with insulation<br />
clips to be spaced 750mm horizontal and 450mm vertical CRS. Form new external steps @ doorway to<br />
comply with current Bld. Regs. Any new heating pipes to be insulated with an insulation of thickness of not<br />
less than the diameter of the pipe - insulation to BS 5422:1977.<br />
Provide 100mm dia stormwater drain, laid to fall 1:60, drain pipe to be surrounded with 150mm pea gravel.<br />
All drain pipes to comply with BS 4660 - connected to existing system.<br />
Specification:<br />
Keystone HD/K factory fabricated Sun Lounge <strong>Lintel</strong> - mitred and welded<br />
complete with factory fitted location spigots for easy installation - on<br />
MS posts designed by Keystone Technical Dept complete with Base Plates<br />
secured to solid footing 300mm below finished floor level.<br />
On large Sun Lounges and in exposed locations the Keystone Inverted<br />
Support Frame is supplied as specified by Keystone Technical<br />
Department.<br />
42
CPD Online: www.keystonelintels.co.uk/cpd<br />
Standard Sun Lounge <strong>Lintel</strong> - Measurement Sheet<br />
A<br />
Brick Reveal<br />
Brick Reveal<br />
<br />
Base Plate<br />
Xº<br />
To Clients<br />
specification<br />
Post dimensions<br />
by Keystone Technical<br />
Dept.<br />
250<br />
250<br />
Dimensions Required:<br />
Plaster Key Requirements: (please tick)<br />
B<br />
E<br />
A-B =<br />
mm<br />
Inside only<br />
B-C =<br />
mm<br />
Both sides<br />
C-D =<br />
mm<br />
None<br />
D-E =<br />
mm<br />
C<br />
D<br />
E-F =<br />
A-F =<br />
mm<br />
mm<br />
Wall Construction:<br />
Outer leaf<br />
mm<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
A-E =<br />
B-F =<br />
B-E =<br />
mm<br />
mm<br />
mm<br />
Cavity width<br />
Inner leaf<br />
mm<br />
mm<br />
C-E =<br />
mm<br />
Support Posts:<br />
B-D =<br />
mm<br />
Height<br />
mm<br />
Raised Ceiling - Optional extra<br />
Exploded Isometric View<br />
<br />
Keystone Ridgebeam Cradle<br />
Ridgebeam Cradle secured to<br />
internal flange of lintel using<br />
2 no. M12 bolts<br />
HD/K factory fabricated Sun<br />
Lounge <strong>Lintel</strong><br />
MS posts designed by Keystone<br />
Tech. Dept. c/w Base Plate<br />
Where a Cathedral or Vaulted<br />
ceiling is required the Keystone<br />
Ridgebeam Cradle is supplied to<br />
support the roof structure and resist<br />
roof spread.<br />
Footing<br />
Foundation<br />
43
Bow Sun Lounge <strong>Lintel</strong><br />
Exploded Isometric View<br />
Keystone Bow <strong>Lintel</strong> as<br />
specified by Technical Dept.,<br />
factory fabricated and fitted<br />
with location spigots.<br />
MS posts designed by Keystone<br />
Technical Dept. c/w Base Plate<br />
secured to substructure 300mm<br />
below finished floor level.<br />
Brick Reveal<br />
Brick Reveal<br />
A<br />
Base Plate<br />
Post dimensions by<br />
Keystone Technical<br />
Dept.<br />
250<br />
D<br />
250<br />
B<br />
X<br />
C<br />
Y<br />
Z<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
B-C =<br />
mm<br />
Cavity width<br />
mm<br />
C-D =<br />
mm<br />
Inner leaf<br />
mm<br />
X-Y =<br />
mm<br />
X-Z =<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Support Posts:<br />
Inside only<br />
Height<br />
mm<br />
Both sides<br />
None<br />
44
CPD Online: www.keystonelintels.co.uk/cpd<br />
Venetian Arch Sun Lounge <strong>Lintel</strong><br />
Specify:<br />
Keystone factory mitred and<br />
welded Venetian Arch Square<br />
Bay <strong>Lintel</strong> and posts with<br />
factory fitted location spigots<br />
for easy installation.<br />
Base Plate<br />
Post dimensions by<br />
Keystone Technical<br />
Dept.<br />
250<br />
350<br />
A<br />
Brick Reveal<br />
Brick Reveal<br />
D<br />
B<br />
Arch Span (s)<br />
C<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
Keystone Sun Lounge Sample Plans<br />
Dimensions Required:<br />
Wall Construction:<br />
A-B =<br />
mm<br />
Outer leaf<br />
mm<br />
B-C =<br />
mm<br />
Cavity width<br />
mm<br />
C-D =<br />
mm<br />
Inner leaf<br />
mm<br />
Arch Dimensions:<br />
Support Posts:<br />
Arch Span (s) =<br />
mm<br />
Height<br />
mm<br />
Rise (r) =<br />
mm<br />
Arch Type: (please tick)<br />
Full Arch<br />
mm<br />
Plaster Key Requirements: (please tick)<br />
Segmental Arch<br />
mm<br />
Inside only<br />
Parabolic Arch<br />
mm<br />
Both sides<br />
Apex Arch<br />
mm<br />
None<br />
Gothic Arch<br />
mm<br />
45
Apex Sun Lounge <strong>Lintel</strong><br />
Exploded Isometric View<br />
Eaves beam supporting<br />
Wall Plates bolted to<br />
framework<br />
Steel purlin supporting<br />
Wall Plate bolted to<br />
framework<br />
H<br />
SHS Apex gable support frame to be sized by Keystone Tech.<br />
Dept. on Base Plates bolted to substructure<br />
Main Wall of House<br />
E<br />
A<br />
Brick Reveal<br />
Brick Reveal<br />
D<br />
B<br />
w<br />
C<br />
Important Notes:<br />
Do not allow for bearing, this will be<br />
added at manufacturing stage.<br />
Very accurate measurements required.<br />
Dimensions Required:<br />
A-B=<br />
B-C=<br />
C-D=<br />
C-E=<br />
mm<br />
mm<br />
mm<br />
mm<br />
Height from top of substructure<br />
to underside of lintels (H)<br />
External frame width of patio<br />
doors if applicable (W)<br />
Roof pitch<br />
mm<br />
mm<br />
46
Brick Arch Sets<br />
Keystone provide a variety of special lintels<br />
and ‘brickwork support systems’. A new<br />
addition to the range is Keystone ‘Brick<br />
Arch Sets’, where the brick-slips are tapered<br />
onto a pre-furbished lintel.<br />
Keystone offer a ‘brick matching’ service<br />
where the complete brick arch set is<br />
designed and customised to your specific<br />
needs. Pre-formed, factory-finished steel<br />
lintels by Keystone are cost-effective and<br />
less time-consuming on-site.<br />
(r)<br />
Clear Opening (s)<br />
Gothic Arch<br />
Information Required<br />
Brick type<br />
Width of joint<br />
Angle of skew (a)<br />
Height of brick arch (h) 1<br />
1 1 / 2<br />
Other<br />
Precision cut bricks<br />
Load bearing lintel<br />
Lightweight for fast build programmes<br />
Optional brickclad soffit<br />
Optional centrestone feature<br />
Optional insulation<br />
Various shapes available<br />
(r)<br />
Clear Opening (s)<br />
Parabolic Arch<br />
Type of brick arch<br />
Flat<br />
Parabolic*<br />
Gothic*<br />
Full<br />
Segmental*<br />
Bulls Eye<br />
Clear brickwork opening (s)<br />
Brick rise (r)*<br />
Clear Opening (s)<br />
(r)<br />
Clear Opening (s)<br />
Segmental Arch<br />
Select from section below if soffit is required<br />
returned or non returned - Please tick box<br />
100mm<br />
100mm<br />
Galvanised<br />
powdercoated<br />
arch set<br />
Galvanised<br />
powdercoated<br />
arch set<br />
Full Arch (Bullseye)<br />
(h)<br />
a<br />
Non Returned Soffit<br />
Returned Soffit<br />
Clear Opening (s)<br />
Optional Extras - Please tick box if required<br />
Flat Arch 1 1 /2 brick deep<br />
Brick Centrestone<br />
Stone Centrestone<br />
Clear Opening (s)<br />
(h)<br />
a<br />
t<br />
Distance (t)<br />
1. Projecting Top<br />
mm<br />
Full Arch<br />
Clear Opening (s)<br />
Flat Arch<br />
Distance (f)<br />
2. Projecting Front<br />
mm<br />
f<br />
3. Projecting Bottom<br />
Distance (b)<br />
mm<br />
b<br />
47
Windposts<br />
Windpost Design<br />
Keystone Windposts are manufactured from grade 304 stainless steel (grade 316 is available<br />
if required). The Keystone Technical Team will provide full product specification and<br />
schedules.<br />
All three Windpost designs are available in shorter lengths to provide the same level of<br />
stability to parapets or below windows, commonly termed Parapet or Spandrel Posts<br />
respectively. These posts are designed as cantilevers.<br />
Keystone Windpost Systems<br />
Keystone Windposts span vertically between<br />
floors to provide additional lateral support<br />
for large panels of brickwork or large panels<br />
with openings. It is often difficult to provide<br />
suitable justification that masonry walls have<br />
lateral stiffness and therefore construction<br />
would traditionally be strengthened by the<br />
addition of thicker walls or by including<br />
columns, to effectively shorten the span of the<br />
masonry panel.<br />
U type windpost<br />
for cavity installation<br />
DU type windpost<br />
for cavity installation<br />
LP type windpost for<br />
installation into the inner<br />
leaf of the blockwork<br />
Keystone manufacture three types of windpost.<br />
The U Windpost is installed within the<br />
cavity and will normally span between floor<br />
structures, with the same principle applying<br />
to the DU Windpost. Both designs leave the<br />
inner leaf of the cavity wall undisturbed. The<br />
LP Windpost is designed to be built into the<br />
inner skin of the cavity wall and normally<br />
span between floor structures.<br />
U Tie<br />
L50 Tie<br />
L75 Tie<br />
L Shear Tie<br />
L100 Tie<br />
Keystone U type<br />
windpost shown<br />
fixed at the base<br />
to concrete and<br />
at the top to the<br />
underside of a<br />
steel beam.<br />
A range of<br />
top and base<br />
connectors can be<br />
designed to suit<br />
specific project<br />
requirements.<br />
All Keystone Windposts are supplied with specifically designed base and upper connections<br />
and fixings. They are also supplied with a suitable number of wall-ties which will vary in<br />
relation to the post type used and the cavity width. There are five types:<br />
U Tie – For use with U & DU Windposts.<br />
L50 Tie – For use with LP Windposts (50mm cavity).<br />
L75 Tie – For use with LP Windposts (75mm cavity).<br />
L100 Tie – For use with LP Windposts (100mm cavity).<br />
L Shear Tie – For use with LP Windposts.<br />
L Shear Tie can be supplied with a de-bonding sleeve if the windpost is positioned at a vertical<br />
movement joint.<br />
48
CPD Online: www.keystonelintels.co.uk/cpd<br />
Windposts<br />
Windpost Types<br />
U Windpost DU Windpost LP Windpost<br />
Diagrams show a typical wall construction at intermediate floor level showing the three Keystone Windpost types bolted to a concrete building frame.<br />
Windpost Loadings<br />
The loadings quoted for the windposts are derived from an allowable stress value of 181N/mm 2 and a deflection limit of span/360 (the lesser of the<br />
two resultant figures is used as the quoted figure).<br />
Please note the quoted loadings are working/characteristic loads.<br />
Keystone Windpost profiles and dimensions.<br />
U Windpost and Ties<br />
DU Windpost and Ties<br />
LP Windpost and Ties<br />
b<br />
b<br />
a<br />
t<br />
t<br />
L Shear Tie<br />
t<br />
a<br />
t<br />
t<br />
a<br />
b<br />
L50/L75/L100 Tie<br />
U Tie<br />
U Tie<br />
Proportions and performance of U, DU and LP windposts.<br />
Windposts can be made to order at various sizes on a project basis. Post taken as a simply supported beam.<br />
SWL’s quoted are assuming adequate base and top fixing to concrete. For other substrates please contact the Keystone Technical Team.<br />
49
Keystone “Special” Projects<br />
Britain’s Most<br />
Expensive<br />
New Home<br />
<strong>Lintel</strong>s:<br />
Special Arch <strong>Lintel</strong>s &<br />
Colonnade Supports<br />
Updown Court, a neo classic Georgian style<br />
home designed by US architects John B<br />
Scholz, provided enormous opportunities<br />
for creative lintel design. Keystone designed<br />
and manufactured hundreds of Special Arch<br />
<strong>Lintel</strong>s and Colonade Supports throughout<br />
this magnificent mansion. We also supplied<br />
numerous Standard, Heavy Duty and Extra<br />
Heavy Duty Straight <strong>Lintel</strong>s. At £70 million<br />
it is reported to be the most expensive new<br />
home ever built in Britain.<br />
Keystone<br />
Take “Pride in<br />
the Job”<br />
<strong>Lintel</strong>s:<br />
Special Bow & Corner<br />
<strong>Lintel</strong>s<br />
Keystone supplied bespoke lintel solutions to<br />
‘Knockantern Green’, an NHBC award-winning<br />
project.<br />
“Patton Homes acknowledges the invaluable<br />
support provided by Keystone <strong>Lintel</strong>s, who<br />
worked as a member of the site team.”<br />
David M. Patton<br />
Chairman, Patton Homes<br />
50
CPD Online: www.keystonelintels.co.uk/cpd<br />
Keystone “Special” Projects<br />
Award-winning<br />
Quay-stone<br />
<strong>Lintel</strong>s:<br />
Special Bow <strong>Lintel</strong>s<br />
This project received a UK Award for the “Best<br />
Use of a Brown Field Site.”<br />
“The Greggs Quay development called for<br />
apartments designed to a very high specification.<br />
Creative lintel designs helped bring the original<br />
design concept to a reality”<br />
Mr Colin Stewart<br />
Partner, McAdam Stewart Architects<br />
“Too often, using ‘special’ designs in a project<br />
is an invitation for delays. Using <strong>Lintel</strong>s from<br />
Keystone however gave my site foreman<br />
confidence. The steel lintels required for the<br />
unusual window head features were supplied<br />
correctly and on time.”<br />
Mr Des Savage<br />
Director, Savage Bros.<br />
Mission<br />
Impossible<br />
<strong>Lintel</strong>s:<br />
Cantilevered Segmental<br />
Arched Corner <strong>Lintel</strong><br />
Keystone produce Special <strong>Lintel</strong>s in<br />
3-5 days... The impossible takes 7!<br />
“Ordering this special cantilevered arched corner<br />
was a pleasure. Details like this can often cause<br />
expensive delays between site measurement,<br />
design and manufacture. Using <strong>Lintel</strong>s from<br />
Keystone, we alleviated these problems and<br />
have now constructed an entrance which was<br />
at first thought to be impossible!”<br />
Gerry Gray<br />
<br />
51
Keystone “Special” Projects<br />
Commercial<br />
Creativity<br />
<strong>Lintel</strong>s:<br />
Balcony Support Details<br />
on Large Commercial<br />
Project<br />
Plans<br />
“Keystone’s ability to design and deliver<br />
standard and custom made lintels quickly and<br />
efficiently has made this job so much easier. A<br />
product and service we highly recommend.”<br />
Mr S Jones<br />
McAleer & Rushe<br />
The Key to the<br />
Manor<br />
<strong>Lintel</strong>s:<br />
Gothic Arch <strong>Lintel</strong>s<br />
This private residence is a mixture of medieval<br />
inspiration and modern lintel design.<br />
52
CPD Online: www.keystonelintels.co.uk/cpd<br />
Keystone “Special” Projects<br />
Curve It Like<br />
Keystone<br />
<strong>Lintel</strong>s:<br />
Special Bow Bay, Arch &<br />
Square Bay <strong>Lintel</strong>s<br />
Keystone provided a unique lintel solution<br />
for this prestigeous development<br />
- a ‘bow-bay’ lintel.<br />
“Keystone supplied a bespoke ‘bow-bay’ lintel for this<br />
project. We were extremely satisfied with the outcome,<br />
and this design has generated much acclaim.”<br />
Adam McAteer<br />
Kevin Cartin Architects Ltd<br />
Restoration<br />
Excellence<br />
<strong>Lintel</strong>s:<br />
Cantilevered Corbelled<br />
Brickwork Support System<br />
“When converting this old dwelling into flats, we<br />
discovered the timber brickwork support detail<br />
on the second floor had deteriorated badly. After<br />
several restoration proposals were considered<br />
non-feasible, we called in Keystone. Their engineer<br />
made one site visit and came up with this<br />
solution. Five days later they delivered the goods.<br />
An excellent product with an excellent service.”<br />
Arthur Rogers, A & J Rogers<br />
53
Keystone “Special” Projects<br />
Access All<br />
Areas<br />
<strong>Lintel</strong>s:<br />
Extra Heavy Duty Flat<br />
Parabolic Arch <strong>Lintel</strong><br />
Three acre housing development sites near<br />
busy town centres are hard to find, and all too<br />
often have limited access. When Development<br />
Architect Roger Sally approached this<br />
access problem he contacted Keystone for<br />
assistance.<br />
“Keystone’s Technical Department designed<br />
these 8000mm span Flat Parabolic Arch <strong>Lintel</strong>s<br />
to support the apartment above and provide<br />
an attractive archway to the landscaped<br />
courtyard of townhouses behind.”<br />
Roger Sally<br />
Teague & Sally Architects<br />
Make a<br />
Grand Entrance<br />
<strong>Lintel</strong>s:<br />
Venetian Gothic Arch <strong>Lintel</strong><br />
“This prestigious hotel development required a<br />
lot of brickwork support systems and intricate<br />
lintel details. Ordering these with Keystone<br />
gave our Contracts Manager peace of mind.<br />
Once agreed the lintels were delivered to site<br />
without delays.”<br />
Vincent McGlew<br />
<br />
54
CPD Online: www.keystonelintels.co.uk/cpd<br />
Keystone “Special” Projects<br />
Every <strong>Lintel</strong><br />
Helps<br />
<strong>Lintel</strong>s:<br />
Full Arch <strong>Lintel</strong>s<br />
When ‘shopping-around’ for the perfect lintel,<br />
‘check-out’ Keystone - the lintel experts!<br />
Step It Up<br />
<strong>Lintel</strong>s:<br />
Heavy Duty<br />
Corbelled <strong>Lintel</strong>s<br />
“When presented with this corbelled detail in<br />
my client’s brief I contacted Keystone’s creative<br />
Technical Department. I am delighted with their<br />
solution and excellent technical service.”<br />
Jennifer Johnston<br />
<br />
55
Keystone “Special” Projects<br />
Keystone Swing<br />
into Action<br />
<strong>Lintel</strong>s:<br />
Arch, Corner & Bay <strong>Lintel</strong>s<br />
“The prestigious and internationally acclaimed<br />
Royal Portrush Golf Club required something<br />
special in its design. The help and advice given<br />
by Keystone’s Technical Department encouraged<br />
me to include some quite complex details. I am<br />
delighted with what has been achieved.”<br />
Mr Kieran Mullan<br />
Senior Partner, GM Design<br />
Thatch Magic<br />
<strong>Lintel</strong>s:<br />
Special Tapered Arch<br />
<strong>Lintel</strong><br />
Keystone designed and supplied the featurepiece<br />
tapered arch on the front of this house,<br />
as well as square bay and corner lintels. Their<br />
solution for this bespoke arch was technically<br />
brilliant removing the need for complicated<br />
and expensive conical formwork.<br />
Plans<br />
56
CPD Online: www.keystonelintels.co.uk/cpd<br />
Keystone “Special” Projects<br />
Always<br />
Accommodating<br />
<strong>Lintel</strong>s:<br />
Special Bow & Arch<br />
<strong>Lintel</strong>s Supplied to Large<br />
Commercial Developments<br />
“Ordering the standard and custom-made<br />
bow lintels on this project was made easy by<br />
using Keystone’s fast and efficient scheduling<br />
service. Once agreed, the lintels were delivered<br />
to site without any delays.”<br />
Mr K Clarke<br />
Louisville Properties<br />
“Keystone deliver their lintels quickly and<br />
efficiently direct to site. Even the special<br />
arched lintels were designed and delivered<br />
within five days. This combination of product<br />
and service was invaluable to our on-site<br />
team.”<br />
Mr C Crossley<br />
Glenistar Properties<br />
Let the<br />
Sunshine In<br />
<strong>Lintel</strong>s:<br />
Arched Sun Lounge<br />
<strong>Lintel</strong> Supplied to<br />
Private Development<br />
“Keystone’s ‘Can Do’ attitude certainly shone<br />
through on this project. We had been told that<br />
this couldn’t be achieved without building<br />
substantial piers at each corner. Keystone<br />
provided a lintel solution delivered to site in<br />
days.”<br />
Colin Smyth<br />
Contracts Manager<br />
57
Roof Windows<br />
The UK & Ireland’s<br />
Only Indigenous<br />
Roof Window<br />
Manufacturer<br />
Also available from<br />
58
Centre Pivot Top Hung Fire Escape Conservation<br />
Vertical Bi-Lite Flat Roof System White Finish<br />
Ridge<br />
Electric Operation<br />
Integral Blind<br />
Smoke Ventilation<br />
Combination Flashings<br />
NEW Generation<br />
Keylite Roof Window Key Features<br />
1 Lowest Standard Fitting Position<br />
2 NEW Ergonomic Handle<br />
3 NEW Quick Fit Brackets<br />
4 NEW One Piece Bottom Apron<br />
5 Enhanced U-Value<br />
6 Part F Ventilation Compliance<br />
7 BBA Approval on 01-09 Window Sizes<br />
8 NEW Engineered Window Components<br />
9 NEW Triple Sealing<br />
10<br />
Enhanced External Flashing Aesthetics<br />
www.keyliteroofwindows.com<br />
Order your blinds online:<br />
www.keyliteblinds.com 59
Ballyreagh Industrial Estate, Sandholes Road, Cookstown, BT80 9DG Tel: +44 (0)28 8676 2184 Fax: +44 (0)28 8676 10<strong>11</strong> Email: info@keystonelintels.co.uk<br />
Ryder Close, Cadley Hill Industrial Estate, Swadlincote, South Derbyshire, DE<strong>11</strong> 9EU Tel: +44 (0)1283 200 150 Fax: +44 (0)1283 223 352 Email: info@keystonelintelsuk.com<br />
Unit 30, Rosemount Business Park, Ballycoolin Road, Finglas, Dublin <strong>11</strong> Tel: +353 (0)1 822 3333 Fax: +353 (0)1 822 3366 Email: info@keystonelintels.ie<br />
www.keystonelintels.com<br />
Certificate No FM 21541<br />
The information contained in this brochure was accurate at the date of publication. Keystone <strong>Lintel</strong>s Limited, however, reserve the right, while maintaining the essential<br />
performance of the lintels described, to introduce at any time modifications and changes of details as may be deemed necessary to improve the lintels described.