SmartLVL 15 Design Guide - Tilling Timber

STRUTTING BEAM SUPPORTING UNDERPURLINSAS 4055 CLASSIFICATION N1, N2 AND N3 (Cont’d)Roof area supported (m 2 ) 2 4 6 8 10 12Member size DxB Roof mass(mm)(kg/m 2 )Maximum Strutting Beam span (mm)130x42 20 3350 2750 2000 1500 NS NS60 2550 1850 1500 1200 NS NS140x42 20 3700 3050 2300 1700 1150 NS60 2850 2050 1650 1450 NS NS150x42 20 4100 3350 2600 1950 1550 NS60 3100 2250 1850 1600 NS NS170x42 20 5000 3950 3300 2450 1950 150060 3700 2700 2250 1950 1750 NS190x42 20 5550 4600 3900 3000 2400 200060 4350 3200 2650 2300 2050 1550200x42 20 5850 4950 4200 3300 2650 220060 4650 3450 2850 2450 2200 2000240x42 20 7050 6150 5350 4600 3650 305060 5900 4450 3700 3250 2900 2650290x42 20 8200 7200 6550 6100 5200 430060 6950 5750 4850 4250 3850 3500300x42 20 8400 7400 6750 6300 5500 460060 7150 6050 5100 4450 4000 37002/130x42 20 4650 3650 3100 2750 2450 225060 3450 2550 2100 1850 1650 15002/140x42 20 5050 4050 3450 3050 2750 250060 3800 2850 2350 2050 1850 16502/150x42 20 5450 4400 3750 3350 3050 280060 4150 3100 2600 2250 2050 18502/170x42 20 6150 5150 4450 3950 3600 335060 4900 3700 3100 2700 2450 22502/190x42 20 6700 5900 5150 4600 4200 390060 5600 4350 3650 3200 2850 26502/200x42 20 6900 6150 5500 4950 4500 420060 5950 4650 3900 3450 3100 28502/240x42 20 7850 7100 6550 6150 5750 535060 6900 5900 5050 4450 4000 37002/290x42 20 8850 8200 7650 7200 6850 655060 8000 6950 6300 5750 5250 48502/300x42 20 9050 8400 7850 7400 7050 675060 8200 7150 6500 6050 5500 51002/360x42 20 10150 9500 9000 8550 8200 790060 9350 8300 7600 7100 6700 63502/400x42 20 10800 10200 9700 9300 8950 860060 10050 9050 8350 7800 7350 7000130x58 20 3900 3150 2650 2100 1650 140060 2950 2150 1750 1500 1350 NS150x58 20 4850 3850 3200 2700 2150 180060 3600 2650 2150 1900 1700 1550170x58 20 5550 4500 3850 3400 2700 225060 4250 3150 2600 2250 2050 1850200x58 20 6550 5550 4800 4250 3650 305060 5250 3950 3300 2900 2600 2350240x58 20 7500 6600 6050 5450 4950 425060 6400 5100 4300 3750 3400 3100300x58 20 8750 7900 7300 6800 6450 615060 7650 6550 5850 5150 4650 4300360x58 20 9850 9050 8450 7950 7550 725060 8850 7700 6950 6450 6050 5550400x58 20 10500 9750 9150 8650 8250 795060 9550 8400 7650 7100 6650 6300300x75 20 8950 8250 7700 7250 6900 660060 8050 7000 6300 5750 5250 4850400x75 20 10700 10100 9550 9100 8750 840060 9900 8850 8100 7550 7150 6800525x75 20 12000 12000 11550 11150 10750 1045060 11850 10900 10150 9550 9100 8700NOTES:1. D = member depth, B = member breadth, NS = not suitable.2. Minimum bearing length = 70 mm at end supports3. Not all sizes of SmartLVL 15 in this table are stocked in each state. (F17 sizes of 120, 140, 190 and 290 mm depths not currently stocked in WA). Pleasecheck with your supplier before ordering4. Top edge of strutting beams with D/B > 3 shall be laterally restrained as per details on page 5SmartLVL 15 Design Guide 71