SmartLam GL17C Brochure - Tilling Timber
SmartLam GL17C Brochure - Tilling Timber
SmartLam GL17C Brochure - Tilling Timber
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COUNTER BEAM SUPPORTING HANGING BEAM<br />
AS 4055 CLASSIFICATION N1, N2 AND N3<br />
Rafter<br />
Ceiling mass - 20 kg/m 2<br />
Propped<br />
Ridge beam<br />
Hanging Beam<br />
COUNTER<br />
BEAM<br />
EXAMPLE:<br />
wind speed = N3<br />
total of hanging beam SPAN = 6400 mm<br />
ceiling load width = ‘X’ / 2 = 6400 / 2 = 3200 mm<br />
Counter<br />
Beam Span<br />
Ceiling Load Width = 'X' / 2<br />
'X' = Total of<br />
Hanging Beam Span<br />
counter beam span = 4500 mm<br />
Enter column at 3600 mm ceiling load width and read down to<br />
a span greater than or equal to 4500 mm<br />
ADOPT:<br />
<strong>SmartLam</strong> GL17 - 165 x 65<br />
Note: Not all sizes of <strong>SmartLam</strong> GL17 in this table are stocked in each state. Please check with your supplier before ordering.<br />
Ceiling load width (mm) 600 1800 2400 3000 3600 4200 4800 5400 6600<br />
Member size DxB (mm)<br />
Maximum Counter beam span (mm)<br />
130x65 5900 4600 4250 3950 3700 3550 3400 3250 3050<br />
165x65 7150 5600 5200 4950 4700 4500 4350 4150 3900<br />
195x65 8200 6450 6000 5650 5400 5200 5000 4850 4600<br />
230x65 9450 7450 6900 6550 6250 6000 5750 5600 5300<br />
260x65 10550 8300 7700 7300 6950 6650 6400 6200 5900<br />
295x65 11800 9350 8650 8150 7800 7450 7200 6950 6600<br />
330x65 12000 10400 9650 9100 8650 8300 7950 7700 7300<br />
360x65 12000 11300 10500 9900 9400 9000 8650 8350 7900<br />
395x65 12000 12000 11500 10800 10300 9850 9450 9150 8650<br />
425x65 12000 12000 12000 11650 11050 10600 10200 9850 9250<br />
460x65 12000 12000 12000 12000 12000 11500 11050 10650 10050<br />
495x65 10450 12000 12000 12000 12000 12000 11900 11500 10800<br />
130x85 6200 4900 4600 4300 4050 3850 3700 3550 3300<br />
165x85 7500 5950 5550 5250 5050 4850 4700 4550 4250<br />
195x85 8600 6850 6400 6050 5800 5550 5400 5200 4950<br />
230x85 9900 7950 7400 7000 6700 6400 6200 6000 5700<br />
260x85 11000 8850 8250 7800 7450 7150 6900 6700 6350<br />
295x85 12000 9950 9300 8750 8350 8000 7750 7500 7100<br />
330x85 12000 11100 10350 9750 9300 8900 8600 8300 7850<br />
360x85 12000 12000 11250 10600 10100 9700 9350 9050 8550<br />
395x85 12000 12000 12000 11650 11100 10600 10250 9900 9350<br />
425x85 12000 12000 12000 12000 11950 11450 11000 10650 10050<br />
460x85 11200 12000 12000 12000 12000 12000 11950 11550 10850<br />
495x85 10100 12000 12000 12000 12000 12000 12000 12000 11750<br />
525x85 9700 12000 12000 12000 12000 12000 12000 12000 12000<br />
560x85 9450 10850 12000 12000 12000 12000 12000 12000 12000<br />
590x85 9300 10100 11150 12000 12000 12000 12000 12000 12000<br />
<strong>SmartLam</strong> GL17 Design Guide 45
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