| Shape | Area (mm2) | Depth (mm) | Width (mm) | Section Properties | |||
|---|---|---|---|---|---|---|---|
| Ix (mm4) | Iy (mm4) | Plastic Mod Xp (mm3) | Plastic Mod Yp (mm3) | ||||
| ST20x20x1.2 Dimensions | 86.5 | 20 | 20 | 4980 | 4980 | 637.06 | 637.06 |
| ST20x20x1.5 Dimensions | 105.2 | 20 | 20 | 5830 | 5830 | 771.75 | 771.75 |
| ST20x20x1.75 Dimensions | 119.9 | 20 | 20 | 6420 | 6420 | 876.97 | 876.97 |
| ST20x20x2.0 Dimensions | 134 | 20 | 20 | 6920 | 6920 | 976 | 976 |
| ST25x25x1.2 Dimensions | 110.5 | 25 | 25 | 10250 | 10250 | 1020.46 | 1020.46 |
| ST25x25x1.5 Dimensions | 135.2 | 25 | 25 | 12160 | 12160 | 1244.25 | 1244.25 |
| ST25x25x1.75 Dimensions | 154.8 | 25 | 25 | 13570 | 13570 | 1421.66 | 1421.66 |
| ST25x25x2 Dimensions | 173.6 | 25 | 25 | 14820 | 14820 | 1591 | 1591 |
| ST30x30x1.5 Dimensions | 165.2 | 30 | 30 | 21950 | 21950 | 1829.25 | 1829.25 |
| ST30x30x1.75 Dimensions | 189.8 | 30 | 30 | 24700 | 24700 | 2097.59 | 2097.59 |
| ST30x30x2 Dimensions | 213.6 | 30 | 30 | 27210 | 27210 | 2356 | 2356 |
| ST30x30x2.5 Dimensions | 258.9 | 30 | 30 | 31540 | 31540 | 2843.75 | 2843.75 |
| ST30x30x3 Dimensions | 300.8 | 30 | 30 | 35000 | 35000 | 3294 | 3294 |
| ST40x40x1.5 Dimensions | 252.5 | 40 | 40 | 54890 | 54890 | 3336.75 | 3336.75 |
| ST40x40x1.75 Dimensions | 259.8 | 40 | 40 | 62370 | 62370 | 3843.22 | 3843.22 |
| ST40x40x2 Dimensions | 293.6 | 40 | 40 | 69390 | 69390 | 4336 | 4336 |
| ST40x40x2.5 Dimensions | 358.9 | 40 | 40 | 82130 | 82130 | 5281.25 | 5281.25 |
| ST40x40x3 Dimensions | 420.8 | 40 | 40 | 93200 | 93200 | 6174 | 6174 |
| ST40x40x4 Dimensions | 534.7 | 40 | 40 | 110640 | 110640 | 7808 | 7808 |
| ST50x50x1.5 Dimensions | 285.2 | 50 | 50 | 110650 | 110650 | 5294.25 | 5294.25 |
| ST50x50x1.75 Dimensions | 329.8 | 50 | 50 | 126410 | 126410 | 6113.84 | 6113.84 |
| ST50x50x2 Dimensions | 373.6 | 50 | 50 | 141460 | 141460 | 6916 | 6916 |
| ST50x50x2.5 Dimensions | 458.9 | 50 | 50 | 169410 | 169410 | 8468.75 | 8468.75 |
| ST50x50x3 Dimensions | 540.8 | 50 | 50 | 194630 | 194630 | 9954 | 9954 |
| ST50x50x4 Dimensions | 694.7 | 50 | 50 | 237250 | 237250 | 12728 | 12728 |
| ST60x60x2 Dimensions | 454 | 60 | 60 | 251200 | 251200 | 10096 | 10096 |
| ST60x60x2.5 Dimensions | 558.9 | 60 | 60 | 303400 | 303400 | 12406.25 | 12406.25 |
| ST60x60x3 Dimensions | 660.8 | 60 | 60 | 351300 | 351300 | 14634 | 14634 |
| ST60x60x4 Dimensions | 854.7 | 60 | 60 | 435390 | 435390 | 18848 | 18848 |
| ST60x60x5 Dimensions | 1035.6 | 60 | 60 | 504680 | 504680 | 22750 | 22750 |
| ST70x70x2.5 Dimensions | 659 | 70 | 70 | 494000 | 494000 | 17093.75 | 17093.75 |
| ST70x70x3 Dimensions | 780.8 | 70 | 70 | 575220 | 575220 | 20214 | 20214 |
| ST70x70x4 Dimensions | 1041.7 | 70 | 70 | 721080 | 721080 | 26168 | 26168 |
| ST70x70x5 Dimensions | 1235.6 | 70 | 70 | 846020 | 846020 | 31750 | 31750 |
| ST80x80x2.5 Dimensions | 758.9 | 80 | 80 | 751470 | 751470 | 22531.25 | 22531.25 |
| ST80x80x3 Dimensions | 900.8 | 80 | 80 | 878380 | 878380 | 26694 | 26694 |
| ST80x80x4 Dimensions | 1174.7 | 80 | 80 | 1110310 | 1110310 | 34688 | 34688 |
| ST80x80x5 Dimensions | 1435.6 | 80 | 80 | 1314140 | 1314140 | 42250 | 42250 |
| ST90x90x3 Dimensions | 1020.8 | 90 | 90 | 1272770 | 1272770 | 34074 | 34074 |
| ST90x90x4 Dimensions | 1334.7 | 90 | 90 | 1619070 | 1619070 | 44408 | 44408 |
| ST90x90x5 Dimensions | 1635.6 | 90 | 90 | 1929030 | 1929030 | 54250 | 54250 |
| ST90x90x6 Dimensions | 1923.2 | 90 | 90 | 2204200 | 2204200 | 63612 | 63612 |
| ST100x100x4 Dimensions | 1194.7 | 100 | 100 | 2263370 | 2263370 | 55328 | 55328 |
| ST100x100x5 Dimensions | 1835.6 | 100 | 100 | 2710710 | 2710710 | 67750 | 67750 |
| ST100x100x6 Dimensions | 2163.2 | 100 | 100 | 3114150 | 3114150 | 79632 | 79632 |
| ST110x110x4 Dimensions | 1654.8 | 110 | 110 | 3059400 | 3059400 | 67448 | 67448 |
| ST110x110x5 Dimensions | 2035.6 | 110 | 110 | 3679500 | 3679500 | 82750 | 82750 |
| ST110x110x6 Dimensions | 2403.3 | 110 | 110 | 4245700 | 4245700 | 97452 | 97452 |
| ST120x120x4 Dimensions | 1814.7 | 120 | 120 | 4022600 | 4022600 | 80768 | 80768 |
| ST120x120x5 Dimensions | 2235.6 | 120 | 120 | 4854410 | 4854410 | 99250 | 99250 |
| ST120x120x6 Dimensions | 2643.2 | 120 | 120 | 5620940 | 5620940 | 117072 | 117072 |
| ST120x120x8 Dimensions | 3419.1 | 120 | 120 | 6966390 | 6966390 | 150784 | 150784 |
| ST130x130x4 Dimensions | 1974.8 | 130 | 130 | 5169700 | 5169700 | 95288 | 95288 |
| ST130x130x5 Dimensions | 2435.6 | 130 | 130 | 6256800 | 6256800 | 117250 | 117250 |
| ST130x130x6 Dimensions | 2883.3 | 130 | 130 | 7266400 | 7266400 | 138492 | 138492 |
| ST130x130x8 Dimensions | 3684.2 | 130 | 130 | 8828600 | 8828600 | 178864 | 178864 |
| ST140x140x4 Dimensions | 2134.7 | 140 | 140 | 6515980 | 6515980 | 111008 | 111008 |
| ST140x140x5 Dimensions | 2635.6 | 140 | 140 | 7905230 | 7905230 | 136750 | 136750 |
| ST140x140x6 Dimensions | 3123.2 | 140 | 140 | 9203590 | 9203590 | 161712 | 161712 |
| ST140x140x8 Dimensions | 4059.1 | 140 | 140 | 11500000 | 11500000 | 209344 | 209344 |
| ST150x150x4 Dimensions | 2294.8 | 150 | 150 | 8078200 | 8078200 | 127928 | 127928 |
| ST150x150x5 Dimensions | 2835.6 | 150 | 150 | 9821200 | 9821200 | 157750 | 157750 |
| ST150x150x6 Dimensions | 3363.3 | 150 | 150 | 11500000 | 11500000 | 186732 | 186732 |
| ST150x150x8 Dimensions | 4324.2 | 150 | 150 | 14100000 | 14100000 | 242224 | 242224 |
| ST160x160x4 Dimensions | 2454.7 | 160 | 160 | 9871520 | 9871520 | 146048 | 146048 |
| ST160x160x5 Dimensions | 3035.6 | 160 | 160 | 12000000 | 12000000 | 180250 | 180250 |
| ST160x160x6 Dimensions | 3603.2 | 160 | 160 | 14100000 | 14100000 | 213552 | 213552 |
| ST160x160x8 Dimensions | 4699.1 | 160 | 160 | 17800000 | 17800000 | 277504 | 277504 |
| ST170x170x4 Dimensions | 2614.8 | 170 | 170 | 11900000 | 11900000 | 165368 | 165368 |
| ST170x170x5 Dimensions | 3235.6 | 170 | 170 | 14500000 | 14500000 | 204250 | 204250 |
| ST170x170x6 Dimensions | 3643.3 | 170 | 170 | 17000000 | 17000000 | 242172 | 242172 |
| ST170x170x8 Dimensions | 4964.2 | 170 | 170 | 21200000 | 21200000 | 315184 | 315184 |
| ST180x180x4 Dimensions | 2770 | 180 | 180 | 14200000 | 14200000 | 185888 | 185888 |
| ST180x180x5 Dimensions | 3440 | 180 | 180 | 17400000 | 17400000 | 229750 | 229750 |
| ST180x180x6 Dimensions | 4080 | 180 | 180 | 20400000 | 20400000 | 272592 | 272592 |
| ST180x180x8 Dimensions | 5280 | 180 | 180 | 25500000 | 25500000 | 355264 | 355264 |
| ST190x190x4 Dimensions | 2930 | 190 | 190 | 16800000 | 16800000 | 207608 | 207608 |
| ST190x190x5 Dimensions | 3640 | 190 | 190 | 20600000 | 20600000 | 256750 | 256750 |
| ST190x190x6 Dimensions | 4320 | 190 | 190 | 24100000 | 24100000 | 304812 | 304812 |
| ST190x190x8 Dimensions | 5600 | 190 | 190 | 32100000 | 32100000 | 397744 | 397744 |
| ST200x200x4 Dimensions | 3090 | 200 | 200 | 19700000 | 19700000 | 230528 | 230528 |
| ST200x200x5 Dimensions | 3840 | 200 | 200 | 24100000 | 24100000 | 285250 | 285250 |
| ST200x200x6 Dimensions | 4560 | 200 | 200 | 28300000 | 28300000 | 338832 | 338832 |
| ST200x200x8 Dimensions | 5920 | 200 | 200 | 35700000 | 35700000 | 442624 | 442624 |
| ST200x200x10 Dimensions | 7260 | 200 | 200 | 42500000 | 42500000 | 542000 | 542000 |
| ST220x220x5 Dimensions | 4240 | 220 | 220 | 32400000 | 32400000 | 346750 | 346750 |
| ST220x220x6 Dimensions | 5040 | 220 | 220 | 38100000 | 38100000 | 412272 | 412272 |
| ST220x220x8 Dimensions | 6560 | 220 | 220 | 48300000 | 48300000 | 539584 | 539584 |
| ST220x220x10 Dimensions | 8060 | 220 | 220 | 57800000 | 57800000 | 662000 | 662000 |
| ST220x220x12 Dimensions | 9370 | 220 | 220 | 64900000 | 64900000 | 779616 | 779616 |
| ST250x250x5 Dimensions | 4840 | 250 | 250 | 48100000 | 48100000 | 450250 | 450250 |
| ST250x250x6 Dimensions | 5760 | 250 | 250 | 56700000 | 56700000 | 535932 | 535932 |
| ST250x250x8 Dimensions | 7520 | 250 | 250 | 72300000 | 72300000 | 703024 | 703024 |
| ST250x250x10 Dimensions | 9260 | 250 | 250 | 87100000 | 87100000 | 864500 | 864500 |
| ST250x250x12 Dimensions | 10800 | 250 | 250 | 98600000 | 98600000 | 1020456 | 1020456 |
| ST280x280x5 Dimensions | 5440 | 280 | 280 | 68100000 | 68100000 | 567250 | 567250 |
| ST280x280x6 Dimensions | 6480 | 280 | 280 | 80500000 | 80500000 | 675792 | 675792 |
| ST280x280x8 Dimensions | 8480 | 280 | 280 | 103000000 | 103000000 | 888064 | 888064 |
| ST280x280x10 Dimensions | 10460 | 280 | 280 | 125000000 | 125000000 | 1094000 | 1094000 |
| ST280x280x12 Dimensions | 12250 | 280 | 280 | 142000000 | 142000000 | 1293696 | 1293696 |
| ST300x300x6 Dimensions | 6960 | 300 | 300 | 99600000 | 99600000 | 778032 | 778032 |
| ST300x300x8 Dimensions | 9120 | 300 | 300 | 128000000 | 128000000 | 1023424 | 1023424 |
| ST300x300x10 Dimensions | 11300 | 300 | 300 | 155000000 | 155000000 | 1262000 | 1262000 |
| ST300x300x12 Dimensions | 13200 | 300 | 300 | 178000000 | 178000000 | 1493856 | 1493856 |
| ST350x350x6 Dimensions | 8160 | 350 | 350 | 160000000 | 160000000 | 1065132 | 1065132 |
| ST350x350x8 Dimensions | 10700 | 350 | 350 | 206000000 | 206000000 | 1403824 | 1403824 |
| ST350x350x10 Dimensions | 13300 | 350 | 350 | 252000000 | 252000000 | 1734500 | 1734500 |
| ST350x350x12 Dimensions | 15600 | 350 | 350 | 291000000 | 291000000 | 2057256 | 2057256 |
| ST400x400x8 Dimensions | 12300 | 400 | 400 | 313000000 | 313000000 | 1844224 | 1844224 |
| ST400x400x10 Dimensions | 15300 | 400 | 400 | 382000000 | 382000000 | 2282000 | 2282000 |
| ST400x400x12 Dimensions | 18000 | 400 | 400 | 443000000 | 443000000 | 2710656 | 2710656 |
| ST400x400x14 Dimensions | 20800 | 400 | 400 | 504000000 | 504000000 | 3130288 | 3130288 |
| ST450x450x8 Dimensions | 13900 | 450 | 450 | 450000000 | 450000000 | 2344624 | 2344624 |
| ST450x450x10 Dimensions | 17300 | 450 | 450 | 551000000 | 551000000 | 2904500 | 2904500 |
| ST450x450x12 Dimensions | 20400 | 450 | 450 | 642000000 | 642000000 | 3454056 | 3454056 |
| ST450x450x14 Dimensions | 23600 | 450 | 450 | 732000000 | 732000000 | 3993388 | 3993388 |
| ST500x500x8 Dimensions | 15500 | 500 | 500 | 622000000 | 622000000 | 2905024 | 2905024 |
| ST500x500x10 Dimensions | 19300 | 500 | 500 | 763000000 | 763000000 | 3602000 | 3602000 |
| ST500x500x12 Dimensions | 22800 | 500 | 500 | 892000000 | 892000000 | 4287456 | 4287456 |
| ST500x500x14 Dimensions | 26400 | 500 | 500 | 1020000000 | 1020000000 | 4961488 | 4961488 |
| ST500x500x16 Dimensions | 29900 | 500 | 500 | 1140000000 | 1140000000 | 5624192 | 5624192 |
The above table of Square tubes sizes offers a detailed beam sizes chart for engineers to easily scroll and find what they’re looking for. If you’re looking for a different section or shape try the search feature or one of the below resources:
