Dimensions - HS: HSS - CSA G40 Square
Welcome to our HSS Square (CSA G40) dimension page. Here you'll find outside dimensions, wall thickness and design thickness, and inner/outer corner radii for every square HSS section in this grade, sourced from the CISC Structural Section Tables (CISC 12). Sort by any column and click through to download a CAD block.
| Designation (metric) | Designation (imperial) | Depth of section (mm) | Width of section (mm) | Wall thickness (mm) | Design wall thickness (mm) | Inner corner radius (mm) | Outer corner radius (mm) | Mass per length (kg/ | Weight per length (imperial) (lb/ | Theoretical cross-sectional area (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| Ds_m | Ds_i | D | B | T | Tdes | RI | RO | Mass | Wt_i | A_Th |
| HS559x559x25 | HS22x22x1.000 | 558.8 | 558.8 | 25.4 | 25.4 | 25.4 | 50.8 | 412 | 277 | 52500 |
| HS559x559x22 | HS22x22x0.875 | 558.8 | 558.8 | 22.23 | 22.23 | 22.23 | 44.46 | 365 | 245 | 46400 |
| HS559x559x19 | HS22x22x0.750 | 558.8 | 558.8 | 19.05 | 19.05 | 19.05 | 38.1 | 316 | 212 | 40200 |
| HS559x559x16 | HS22x22x0.625 | 558.8 | 558.8 | 15.88 | 15.88 | 15.88 | 31.76 | 266 | 178 | 33800 |
| HS508x508x25 | HS20x20x1.000 | 508 | 508 | 25.4 | 25.4 | 25.4 | 50.8 | 372 | 250 | 47400 |
| HS508x508x22 | HS20x20x0.875 | 508 | 508 | 22.23 | 22.23 | 22.23 | 44.46 | 329 | 221 | 41900 |
| HS508x508x19 | HS20x20x0.750 | 508 | 508 | 19.05 | 19.05 | 19.05 | 38.1 | 285 | 192 | 36300 |
| HS508x508x16 | HS20x20x0.625 | 508 | 508 | 15.88 | 15.88 | 15.88 | 31.76 | 240 | 161 | 30600 |
| HS508x508x13 | HS20x20x0.500 | 508 | 508 | 12.7 | 12.7 | 12.7 | 25.4 | 194 | 131 | 24700 |
| HS457x457x25 | HS18x18x1.000 | 457.2 | 457.2 | 25.4 | 25.4 | 25.4 | 50.8 | 331 | 223 | 42200 |
| HS457x457x22 | HS18x18x0.875 | 457.2 | 457.2 | 22.23 | 22.23 | 22.23 | 44.46 | 294 | 197 | 37400 |
| HS457x457x19 | HS18x18x0.750 | 457.2 | 457.2 | 19.05 | 19.05 | 19.05 | 38.1 | 255 | 171 | 32500 |
| HS457x457x16 | HS18x18x0.625 | 457.2 | 457.2 | 15.88 | 15.88 | 15.88 | 31.76 | 215 | 144 | 27400 |
| HS457x457x13 | HS18x18x0.500 | 457.2 | 457.2 | 12.7 | 12.7 | 12.7 | 25.4 | 174 | 117 | 22200 |
| HS406x406x22 | HS16x16x0.875 | 406.4 | 406.4 | 22.23 | 22.23 | 22.23 | 44.46 | 258 | 173 | 32900 |
| HS406x406x19 | HS16x16x0.750 | 406.4 | 406.4 | 19.05 | 19.05 | 19.05 | 38.1 | 224 | 151 | 28600 |
| HS406x406x16 | HS16x16x0.625 | 406.4 | 406.4 | 15.88 | 15.88 | 15.88 | 31.76 | 190 | 127 | 24200 |
| HS406x406x13 | HS16x16x0.500 | 406.4 | 406.4 | 12.7 | 12.7 | 12.7 | 25.4 | 154 | 103 | 19600 |
| HS406x406x9.5 | HS16x16x0.375 | 406.4 | 406.4 | 9.53 | 9.53 | 9.53 | 19.06 | 117 | 78.5 | 14900 |
| HS356x356x19 | HS14x14x0.750 | 355.6 | 355.6 | 19.05 | 19.05 | 19.05 | 38.1 | 194 | 130 | 24700 |
| HS356x356x16 | HS14x14x0.625 | 355.6 | 355.6 | 15.88 | 15.88 | 15.88 | 31.76 | 164 | 110 | 20900 |
| HS356x356x13 | HS14x14x0.500 | 355.6 | 355.6 | 12.7 | 12.7 | 12.7 | 25.4 | 133 | 89.7 | 17000 |
| HS356x356x9.5 | HS14x14x0.375 | 355.6 | 355.6 | 9.53 | 9.53 | 9.53 | 19.06 | 102 | 68.3 | 13000 |
| HS356x356x7.9 | HS14x14x0.313 | 355.6 | 355.6 | 7.94 | 7.94 | 7.94 | 15.88 | 85.4 | 57.5 | 10900 |
| HS305x305x19 | HS12x12x0.750 | 304.8 | 304.8 | 19.05 | 19.05 | 19.05 | 38.1 | 164 | 110 | 20800 |
| HS305x305x16 | HS12x12x0.625 | 304.8 | 304.8 | 15.88 | 15.88 | 15.88 | 31.76 | 139 | 93.4 | 17700 |
| HS305x305x13 | HS12x12x0.500 | 304.8 | 304.8 | 12.7 | 12.7 | 12.7 | 25.4 | 113 | 76.1 | 14400 |
| HS305x305x9.5 | HS12x12x0.375 | 304.8 | 304.8 | 9.53 | 9.53 | 9.53 | 19.06 | 86.5 | 58.1 | 11000 |
| HS305x305x7.9 | HS12x12x0.313 | 304.8 | 304.8 | 7.94 | 7.94 | 7.94 | 15.88 | 72.7 | 48.9 | 9270 |
| HS305x305x6.4 | HS12x12x0.250 | 304.8 | 304.8 | 6.35 | 6.35 | 6.35 | 12.7 | 58.7 | 39.4 | 7480 |
| HS254x254x16 | HS10x10x0.625 | 254 | 254 | 15.88 | 15.88 | 15.88 | 31.76 | 114 | 76.3 | 14500 |
| HS254x254x13 | HS10x10x0.500 | 254 | 254 | 12.7 | 12.7 | 12.7 | 25.4 | 93 | 62.5 | 11800 |
| HS254x254x9.5 | HS10x10x0.375 | 254 | 254 | 9.53 | 9.53 | 9.53 | 19.06 | 71.3 | 47.9 | 9090 |
| HS254x254x7.9 | HS10x10x0.313 | 254 | 254 | 7.94 | 7.94 | 7.94 | 15.88 | 60.1 | 40.4 | 7650 |
| HS254x254x6.4 | HS10x10x0.250 | 254 | 254 | 6.35 | 6.35 | 6.35 | 12.7 | 48.6 | 32.6 | 6190 |
| HS254x254x4.8 | HS10x10x0.188 | 254 | 254 | 4.78 | 4.78 | 4.78 | 9.56 | 36.9 | 24.8 | 4710 |
| HS203x203x16 | HS8x8x0.625 | 203.2 | 203.2 | 15.88 | 15.88 | 15.88 | 31.76 | 88.3 | 59.3 | 11200 |
| HS203x203x13 | HS8x8x0.500 | 203.2 | 203.2 | 12.7 | 12.7 | 12.7 | 25.4 | 72.7 | 48.9 | 9260 |
| HS203x203x9.5 | HS8x8x0.375 | 203.2 | 203.2 | 9.53 | 9.53 | 9.53 | 19.06 | 56.1 | 37.7 | 7150 |
| HS203x203x7.9 | HS8x8x0.313 | 203.2 | 203.2 | 7.94 | 7.94 | 7.94 | 15.88 | 47.4 | 31.9 | 6040 |
| HS203x203x6.4 | HS8x8x0.250 | 203.2 | 203.2 | 6.35 | 6.35 | 6.35 | 12.7 | 38.4 | 25.8 | 4900 |
| HS203x203x4.8 | HS8x8x0.188 | 203.2 | 203.2 | 4.78 | 4.78 | 4.78 | 9.56 | 29.3 | 19.7 | 3730 |
| HS178x178x16 | HS7x7x0.625 | 177.8 | 177.8 | 15.88 | 15.88 | 15.88 | 31.76 | 75.6 | 50.8 | 9640 |
| HS178x178x13 | HS7x7x0.500 | 177.8 | 177.8 | 12.7 | 12.7 | 12.7 | 25.4 | 62.6 | 42.1 | 7970 |
| HS178x178x9.5 | HS7x7x0.375 | 177.8 | 177.8 | 9.53 | 9.53 | 9.53 | 19.06 | 48.5 | 32.6 | 6180 |
| HS178x178x7.9 | HS7x7x0.313 | 177.8 | 177.8 | 7.94 | 7.94 | 7.94 | 15.88 | 41.1 | 27.6 | 5230 |
| HS178x178x6.4 | HS7x7x0.250 | 177.8 | 177.8 | 6.35 | 6.35 | 6.35 | 12.7 | 33.4 | 22.4 | 4250 |
| HS178x178x4.8 | HS7x7x0.188 | 177.8 | 177.8 | 4.78 | 4.78 | 4.78 | 9.56 | 25.5 | 17.1 | 3250 |
| HS152x152x13 | HS6x6x0.500 | 152.4 | 152.4 | 12.7 | 12.7 | 12.7 | 25.4 | 52.4 | 35.2 | 6680 |
| HS152x152x9.5 | HS6x6x0.375 | 152.4 | 152.4 | 9.53 | 9.53 | 9.53 | 19.06 | 40.9 | 27.5 | 5210 |
| HS152x152x7.9 | HS6x6x0.313 | 152.4 | 152.4 | 7.94 | 7.94 | 7.94 | 15.88 | 34.7 | 23.4 | 4430 |
| HS152x152x6.4 | HS6x6x0.250 | 152.4 | 152.4 | 6.35 | 6.35 | 6.35 | 12.7 | 28.3 | 19 | 3610 |
| HS152x152x4.8 | HS6x6x0.188 | 152.4 | 152.4 | 4.78 | 4.78 | 4.78 | 9.56 | 21.7 | 14.6 | 2760 |
| HS127x127x13 | HS5x5x0.500 | 127 | 127 | 12.7 | 12.7 | 12.7 | 25.4 | 42.3 | 28.4 | 5390 |
| HS127x127x9.5 | HS5x5x0.375 | 127 | 127 | 9.53 | 9.53 | 9.53 | 19.06 | 33.3 | 22.4 | 4240 |
| HS127x127x7.9 | HS5x5x0.313 | 127 | 127 | 7.94 | 7.94 | 7.94 | 15.88 | 28.4 | 19.1 | 3620 |
| HS127x127x6.4 | HS5x5x0.250 | 127 | 127 | 6.35 | 6.35 | 6.35 | 12.7 | 23.2 | 15.6 | 2960 |
| HS127x127x4.8 | HS5x5x0.188 | 127 | 127 | 4.78 | 4.78 | 4.78 | 9.56 | 17.9 | 12 | 2280 |
| HS127x127x3.2 | HS5x5x0.125 | 127 | 127 | 3.18 | 3.18 | 3.18 | 6.36 | 12.2 | 8.16 | 1550 |
| HS102x102x13 | HS4x4x0.500 | 101.6 | 101.6 | 12.7 | 12.7 | 12.7 | 25.4 | 32.2 | 21.6 | 4100 |
| HS102x102x9.5 | HS4x4x0.375 | 101.6 | 101.6 | 9.53 | 9.53 | 9.53 | 19.06 | 25.7 | 17.3 | 3280 |
| HS102x102x7.9 | HS4x4x0.313 | 101.6 | 101.6 | 7.94 | 7.94 | 7.94 | 15.88 | 22.1 | 14.9 | 2810 |
| HS102x102x6.4 | HS4x4x0.250 | 101.6 | 101.6 | 6.35 | 6.35 | 6.35 | 12.7 | 18.2 | 12.2 | 2320 |
| HS102x102x4.8 | HS4x4x0.188 | 101.6 | 101.6 | 4.78 | 4.78 | 4.78 | 9.56 | 14.1 | 9.45 | 1790 |
| HS102x102x3.2 | HS4x4x0.125 | 101.6 | 101.6 | 3.18 | 3.18 | 3.18 | 6.36 | 9.62 | 6.46 | 1230 |
| HS89x89x9.5 | HS3.5x3.5x0.375 | 88.9 | 88.9 | 9.53 | 9.53 | 9.53 | 19.06 | 21.9 | 14.7 | 2790 |
| HS89x89x7.9 | HS3.5x3.5x0.313 | 88.9 | 88.9 | 7.94 | 7.94 | 7.94 | 15.88 | 18.9 | 12.7 | 2410 |
| HS89x89x6.4 | HS3.5x3.5x0.250 | 88.9 | 88.9 | 6.35 | 6.35 | 6.35 | 12.7 | 15.6 | 10.5 | 1990 |
| HS89x89x4.8 | HS3.5x3.5x0.188 | 88.9 | 88.9 | 4.78 | 4.78 | 4.78 | 9.56 | 12.2 | 8.17 | 1550 |
| HS76x76x9.5 | HS3x3x0.375 | 76.2 | 76.2 | 9.53 | 9.53 | 9.53 | 19.06 | 18.1 | 12.2 | 2310 |
| HS76x76x7.9 | HS3x3x0.313 | 76.2 | 76.2 | 7.94 | 7.94 | 7.94 | 15.88 | 15.7 | 10.6 | 2010 |
| HS76x76x6.4 | HS3x3x0.250 | 76.2 | 76.2 | 6.35 | 6.35 | 6.35 | 12.7 | 13.1 | 8.81 | 1670 |
| HS76x76x4.8 | HS3x3x0.188 | 76.2 | 76.2 | 4.78 | 4.78 | 4.78 | 9.56 | 10.3 | 6.89 | 1310 |
| HS76x76x3.2 | HS3x3x0.125 | 76.2 | 76.2 | 3.18 | 3.18 | 3.18 | 6.36 | 7.09 | 4.76 | 903 |
| HS64x64x6.4 | HS2.5x2.5x0.250 | 63.5 | 63.5 | 6.35 | 6.35 | 6.35 | 12.7 | 10.6 | 7.11 | 1350 |
| HS64x64x4.8 | HS2.5x2.5x0.188 | 63.5 | 63.5 | 4.78 | 4.78 | 4.78 | 9.56 | 8.35 | 5.61 | 1060 |
| HS64x64x3.2 | HS2.5x2.5x0.125 | 63.5 | 63.5 | 3.18 | 3.18 | 3.18 | 6.36 | 5.82 | 3.9 | 741 |
| HS51x51x6.4 | HS2x2x0.250 | 50.8 | 50.8 | 6.35 | 6.35 | 6.35 | 12.7 | 8.05 | 5.41 | 1030 |
| HS51x51x4.8 | HS2x2x0.188 | 50.8 | 50.8 | 4.78 | 4.78 | 4.78 | 9.56 | 6.45 | 4.33 | 821 |
| HS51x51x3.2 | HS2x2x0.125 | 50.8 | 50.8 | 3.18 | 3.18 | 3.18 | 6.36 | 4.55 | 3.05 | 580 |
| HS38x38x4.8 | HS1.5x1.5x0.188 | 38.1 | 38.1 | 4.78 | 4.78 | 4.78 | 9.56 | 4.54 | 3.05 | 578 |
| HS38x38x3.2 | HS1.5x1.5x0.125 | 38.1 | 38.1 | 3.18 | 3.18 | 3.18 | 6.36 | 3.28 | 2.2 | 418 |