The inertia calculations are based on the parallel axis theoreom, no calculations are performed for buckling or any other forms of localised failure
For a box section use 2 x the side width as single web width
Or select standard beam: AS3679_Welded_Beams_(mm) 1200WB455 600 600 57900 15300e6 1200WB423 596 596 53900 13900e6 1200WB249 585 585 31700 6380e6 1000WB322 512 512 35900 5730e6 1000WB215 500 500 27400 4060e6 900WB282 462 462 35900 5730e6 900WB175 450 450 22300 2960e6 800WB192 408 408 24400 2970e6 800WB122 396 396 15600 1570e6 700WB173 358 358 22000 2060e6 700WB115 346 346 14600 1150e6 AS3679_Welded_Columns_(mm) 500WC440 240 240 56000 2150e6 500WC340 257 257 43200 2050e6 500WC228 245 245 29000 1260e6 400WC361 215 215 46000 1360e6 400WC270 207 207 34400 1030e6 400WC144 191 191 18400 486e6 350WC280 177.5 177.5 35700 747e6 AS3679_Universal_Beams_(mm) 610UB125 306 306 16000 986e6 610UB113 303.5 303.5 14500 875e6 610UB101 301 301 13000 761e6 530UB92.4 266.5 266.5 11800 554e6 530UB82.0 264 264 10500 477e6 460UB82.1 230 230 10500 372e6 460UB74.6 228.5 228.5 9520 335e6 460UB67.1 227 227 8580 296e6 410UB59.7 203 203 7640 216e6 410UB53.7 201.5 201.5 6890 188e6 360UB56.7 179.5 179.5 7240 161e6 360UB50.7 178 178 6470 142e6 360UB44.7 176 176 5720 121e6 310UB46.2 153.5 153.5 5930 100e6 310UB40.4 152 152 5210 86.4e6 310UB32.0 149 149 4080 63.2e6 250UB37.3 128 128 4750 55.7e6 250UB31.4 126 126 4010 44.5e6 250UB25.7 101 101 2870 21e6 200UB29.8 99 99 2320 15.8e6 200UB18.2 89.5 89.5 2820 15.3e6 180UB22.2 87.5 87.5 2300 12.1e6 180UB16.1 86.5 86.5 2040 10.6e6 150UB18.0 77.5 77.5 2300 9.05e6 150UB14.0 75 75 1780 6.66e6 AS3679_Universal_Columns_(mm) 310UC158 163.5 163.5 20100 388e6 310UC137 160.5 160.5 17500 329e6 310UC118 157.5 157.5 15000 277e6 310UC96.8 154 154 12400 223e6 250UC89.5 130 130 11400 143e6 250UC72.9 127 127 9320 114e6 200UC59.5 105 105 7620 61.3e6 200UC52.2 103 103 6660 52.8e6 200UC46.2 101.5 101.5 5900 45.9e6 150UC37.2 81 81 4730 22.2e6 150UC30.0 79 79 3860 17.6e6 150UC23.4 76 76 2980 12.6e6 100UC14.8 48.5 48.5 1890 3.18e6
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