National Gypsum Construction Guide - 12th Edition

SINGLE LAYER CONSTRUCTION
TRACK - CUT AND
BENT DOWN
FASTEN JAMB STUDS TO TRACK
TOP AND BOTTOM
JAMB
ANCHORS
92 NATIONAL GYPSUM BOARD PRODUCTS
C.R. CHANNEL
STIFFENERS
FRICTION FIT
(OPTIONAL)
STEEL DOOR
FRAME
FRAMING REQUIREMENTS AT DOORS
(Type of Door Frame) (Special Details) Partition Height Limits*
Jamb Steel Studs Knock Knock Bracing Requires Stud Size
Door Min. Down Down Fixed Over Mechanical 1 5/8" 2 1/2" 3 5/8" 4" 6"
Weight Base Steel, In. Alum. Steel Steel Headers Closure (41.3mm) (63.5mm) (92.1mm) (102mm) (152mm)
Up to
50 lbs.
(23 kg)
50 lbs.
(23 kg) to
80 lbs.
(36 kg)
80 lbs.
(36 kg) to
120 lbs.
(54 kg)
16' MAX. HEIGHT
20" MAX. WIDTH
PER ASTM C754
CHASE WALL
0.0179
0.0179
x
x
x
x
x
x x
NA**
10'(3048mm)
10'(3048mm)
12'(3657mm)
14'(4267mm)
16'(4876mm)
15'(4572mm)
17'(5181mm)
14'(4267mm)
16'(4876mm)
0.0329 x x x x – 16'(4876mm) 21'(6400mm) 22'(6705mm) 22'(6705mm)
0.0179
0.0179
0.0179
x
x x
x
x
x
x
x
x
–
10'(3048mm)
12'(3657mm)
10'(3048mm)
12'(3657mm)
14'(4267mm)
14'(4267mm)
14'(4267mm)
16'(4876mm)
15'(4572mm)
15'(4572mm)
17'(5181mm)
14'(4267mm)
14'(4267mm)
16'(4876mm)
0.0329 x 10'(3048mm) 14'(4267mm) 15'(4572mm) 15'(4572mm)
0.0329 x x x 12'(3657mm) 16'(4876mm) 17'(5181mm) 17'(5181mm)
0.0329 x x x 12'(3657mm) 16'(4876mm) 17'(5181mm) 17'(5181mm)
0.0329 dbl. web to web x 16'(4876mm) 21'(6400mm) 22'(6705mm) 22'(6705mm)
0.0329 dbl. web to web x x 16'(4876mm) 21'(6400mm) 22'(6705mm) 22'(6705mm)
0.0179 x x x 12'(3657mm) 14'(4267mm) 15'(4572mm) 14'(4267mm)
0.0329 x x x x 12'(3657mm) 16'(4876mm) 17'(5181mm) 17'(5181mm)
0.0329 dbl. web to web x x 16'(4876mm) 21'(6400mm) 22'(6705mm) 22'(6705mm)
* For a specific partition having a door opening compare above partition height limits with height tables on page 88. The lower height table governs.
** NA – Not Allowed.
12"
48"
MAX.
STEEL TRACK
TAPE AND JOINT
COMPOUND
FACE GYPSUM BOARD (APPLIED
IN NORMAL MANNER)
1/2" GYPSUM
BOARD OR
STUD TRACK
2 SCREWS
PER STUD
(ALTERNATE)
3 DRYWALL
SCREWS
PER STUD