Steel RHS Dimensions
RHS (Rectangular Hollow Section) is a cold-formed or hot-finished structural steel tube with an unequal-sided rectangular cross-section, chosen where bending load is predominantly in one direction — the deeper dimension gives significantly more bending stiffness and strength about its strong axis than an SHS of similar mass, at the cost of reduced stiffness about the weaker axis. The chart below gives dimensional and section property information for standard RHS sizes to BS EN 10219:1997.
For an equal-sided square equivalent, see our Steel SHS chart; for a round section, see Steel CHS.
The charts below gives the dimensions for Cold Formed Steel Rectangular Hollow Section to BS EN10219:1997 and Hot Formed Steel Rectangular Hollow Section to BS EN10210-2:1997
Dimensions shown are in mm, if you wish to convert to Inches, please use our universal converter.
If you are interested in different sections why not try these?
- Steel Beam Dimensions
- Steel CHS Dimensions
- Steel NB Pipe Dimensions
- Steel PFC Dimensions
- Steel RSA Dimensions
- Steel SHS Dimensions
STEEL RECTANGULAR HOLLOW SECTION - COLD FORMED - BS EN10219:1997

| Size | Thickness | Corner Radius | Mass/m | Area of Section | Second Moment of Area | Radius Of Gyration | Torsional Constants | Section Surface Area | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B | A | C | External E | Internal D | M | A | Axis x-x Ix | Axis y-y Iy | Axis x-x rx | Axis y-y ry | Inertia J | Modulus C | As |
| mm | mm | mm | mm | mm | kg/m | cm² | cm⁴ | cm⁴ | cm | cm | cm⁴ | cm³ | m²/m |
| 40 | 20 | 2 | 4 | 2 | 1.678 | 2.137 | 4.05 | 1.343 | 1.377 | 0.793 | 3.424 | 2.705 | 0.12 |
| 40 | 20 | 2.5 | 5 | 2.5 | 2.032 | 2.589 | 4.694 | 1.537 | 1.347 | 0.77 | 4.007 | 3.221 | 0.12 |
| 40 | 20 | 3 | 6 | 3 | 2.361 | 3.008 | 5.208 | 1.685 | 1.316 | 0.748 | 4.477 | 3.67 | 0.12 |
| 50 | 25 | 2 | 4 | 2 | 2.149 | 2.737 | 8.384 | 2.809 | 1.75 | 1.013 | 7.026 | 4.385 | 0.15 |
| 50 | 25 | 2.5 | 5 | 2.5 | 2.621 | 3.339 | 9.887 | 3.278 | 1.721 | 0.991 | 8.36 | 5.283 | 0.15 |
| 50 | 30 | 2 | 4 | 2 | 2.306 | 2.937 | 9.536 | 4.293 | 1.802 | 1.209 | 9.728 | 5.345 | 0.16 |
| 50 | 30 | 2.5 | 5 | 2.5 | 2.817 | 3.589 | 11.3 | 5.052 | 1.774 | 1.186 | 11.7 | 6.471 | 0.16 |
| 50 | 30 | 3 | 6 | 3 | 3.303 | 4.208 | 12.8 | 5.7 | 1.746 | 1.164 | 13.4 | 7.51 | 0.16 |
| 50 | 30 | 4 | 8 | 4 | 4.198 | 5.348 | 15.3 | 6.693 | 1.689 | 1.119 | 16.2 | 9.321 | 0.16 |
| 60 | 40 | 2 | 4 | 2 | 2.934 | 3.737 | 18.4 | 9.831 | 2.22 | 1.622 | 20.7 | 8.785 | 0.2 |
| 60 | 40 | 2.5 | 5 | 2.5 | 3.602 | 4.589 | 22.1 | 11.7 | 2.193 | 1.599 | 25 | 10.7 | 0.2 |
| 60 | 40 | 3 | 6 | 3 | 4.245 | 5.408 | 25.4 | 13.4 | 2.166 | 1.576 | 29.1 | 12.5 | 0.2 |
| 70 | 50 | 2 | 4 | 2 | 3.562 | 4.537 | 31.5 | 18.8 | 2.634 | 2.033 | 37.4 | 13 | 0.24 |
| 70 | 50 | 2.5 | 5 | 2.5 | 4.387 | 5.589 | 38 | 22.6 | 2.608 | 2.01 | 45.6 | 16 | 0.24 |
| 70 | 50 | 3 | 6 | 3 | 5.187 | 6.608 | 44.1 | 26.1 | 2.582 | 1.987 | 53.4 | 18.8 | 0.24 |
| 70 | 50 | 4 | 8 | 4 | 6.71 | 8.548 | 54.7 | 32.2 | 2.529 | 1.942 | 67.6 | 24 | 0.24 |
| 80 | 40 | 2 | 4 | 2 | 3.562 | 4.537 | 37.4 | 12.7 | 2.869 | 1.675 | 30.8 | 11.8 | 0.24 |
| 80 | 40 | 2.5 | 5 | 2.5 | 4.387 | 5.589 | 45.1 | 15.3 | 2.841 | 1.652 | 37.5 | 14.5 | 0.24 |
| 80 | 40 | 3 | 6 | 3 | 5.187 | 6.608 | 52.3 | 17.6 | 2.812 | 1.63 | 43.7 | 17 | 0.24 |
| 80 | 40 | 4 | 8 | 4 | 6.71 | 8.548 | 64.8 | 21.5 | 2.753 | 1.585 | 54.8 | 21.6 | 0.24 |
| 80 | 40 | 5 | 10 | 5 | 8.13 | 10.356 | 75.1 | 24.6 | 2.693 | 1.541 | 64.1 | 25.8 | 0.24 |
| 80 | 60 | 2 | 4 | 2 | 4.19 | 5.337 | 49.5 | 31.9 | 3.046 | 2.444 | 61.1 | 18.1 | 0.28 |
| 80 | 60 | 2.5 | 5 | 2.5 | 5.172 | 6.589 | 60.1 | 38.6 | 3.021 | 2.421 | 74.9 | 22.2 | 0.28 |
| 80 | 60 | 3 | 6 | 3 | 6.129 | 7.808 | 70 | 44.9 | 2.995 | 2.398 | 88.1 | 26.2 | 0.28 |
| 80 | 60 | 4 | 8 | 4 | 7.966 | 10.148 | 87.9 | 56.1 | 2.943 | 2.352 | 112.6 | 33.8 | 0.28 |
| 80 | 60 | 5 | 10 | 5 | 9.7 | 12.356 | 103.3 | 65.7 | 2.891 | 2.305 | 134.5 | 40.8 | 0.28 |
| 90 | 50 | 2 | 4 | 2 | 4.19 | 5.337 | 57.9 | 23.4 | 3.293 | 2.092 | 53.3 | 16.9 | 0.28 |
| 90 | 50 | 2.5 | 5 | 2.5 | 5.172 | 6.589 | 70.3 | 28.2 | 3.266 | 2.07 | 65.2 | 20.7 | 0.28 |
| 90 | 50 | 3 | 6 | 3 | 6.129 | 7.808 | 81.9 | 32.7 | 3.238 | 2.048 | 76.4 | 24.4 | 0.28 |
| 90 | 50 | 3.6 | 7.2 | 3.6 | 7.244 | 9.228 | 94.7 | 37.7 | 3.204 | 2.021 | 89.2 | 28.7 | 0.28 |
| 90 | 50 | 4 | 8 | 4 | 7.966 | 10.148 | 102.7 | 40.7 | 3.181 | 2.003 | 97.2 | 31.4 | 0.28 |
| 100 | 40 | 2.5 | 5 | 2.5 | 5.172 | 6.589 | 79.3 | 18.8 | 3.47 | 1.688 | 50.4 | 18.2 | 0.28 |
| 100 | 40 | 3 | 6 | 3 | 6.129 | 7.808 | 92.3 | 21.7 | 3.439 | 1.666 | 58.8 | 21.4 | 0.28 |
| 100 | 40 | 4 | 8 | 4 | 7.966 | 10.148 | 115.7 | 26.7 | 3.377 | 1.622 | 74 | 27.4 | 0.28 |
| 100 | 50 | 2 | 4 | 2 | 4.504 | 5.737 | 75 | 25.7 | 3.615 | 2.115 | 61.5 | 18.8 | 0.3 |
| 100 | 50 | 2.5 | 5 | 2.5 | 5.565 | 7.089 | 91.2 | 31.1 | 3.587 | 2.093 | 75.2 | 23.1 | 0.3 |
| 100 | 50 | 3 | 6 | 3 | 6.6 | 8.408 | 106.5 | 36.1 | 3.558 | 2.071 | 88.3 | 27.2 | 0.3 |
| 100 | 50 | 6 | 12 | 6 | 12.272 | 15.633 | 178.8 | 58.7 | 3.381 | 1.937 | 152.3 | 48.8 | 0.3 |
| 100 | 60 | 3 | 6 | 3 | 7.071 | 9.008 | 120.6 | 54.6 | 3.659 | 2.463 | 121.4 | 33.1 | 0.32 |
| 100 | 60 | 3.6 | 7.2 | 3.6 | 8.374 | 10.668 | 140.2 | 63.3 | 3.626 | 2.436 | 142.3 | 39 | 0.32 |
| 100 | 60 | 4 | 8 | 4 | 9.222 | 11.748 | 152.6 | 68.7 | 3.604 | 2.418 | 155.6 | 42.8 | 0.32 |
| 100 | 60 | 5 | 10 | 5 | 11.27 | 14.356 | 180.8 | 80.8 | 3.548 | 2.373 | 186.7 | 51.8 | 0.32 |
| 100 | 60 | 6 | 12 | 6 | 13.214 | 16.833 | 205.3 | 91.2 | 3.492 | 2.328 | 214.4 | 60.1 | 0.32 |
| 100 | 60 | 6.3 | 15.75 | 9.45 | 13.51 | 17.21 | 203.4 | 90.9 | 3.438 | 2.298 | 221.1 | 61.7 | 0.32 |
| 100 | 80 | 2.5 | 5 | 2.5 | 6.742 | 8.589 | 126.9 | 90.2 | 3.843 | 3.24 | 165.7 | 37.7 | 0.36 |
| 100 | 80 | 3 | 6 | 3 | 8.013 | 10.208 | 148.8 | 105.6 | 3.818 | 3.217 | 195.8 | 44.7 | 0.36 |
| 100 | 80 | 4 | 8 | 4 | 10.478 | 13.348 | 189.5 | 134.2 | 3.768 | 3.17 | 253.1 | 58.1 | 0.36 |
| 100 | 80 | 5 | 10 | 5 | 12.84 | 16.356 | 225.9 | 159.6 | 3.717 | 3.124 | 306.2 | 70.8 | 0.36 |
| 100 | 80 | 6 | 12 | 6 | 15.098 | 19.233 | 258.4 | 182.1 | 3.665 | 3.077 | 355.1 | 82.6 | 0.36 |
| 120 | 60 | 2.5 | 5 | 2.5 | 6.742 | 8.589 | 161.2 | 55.2 | 4.333 | 2.534 | 132.4 | 33.7 | 0.36 |
| 120 | 60 | 3 | 6 | 3 | 8.013 | 10.208 | 189.1 | 64.4 | 4.304 | 2.512 | 156 | 39.9 | 0.36 |
| 120 | 60 | 3.6 | 7.2 | 3.6 | 9.505 | 12.108 | 220.7 | 74.8 | 4.27 | 2.485 | 183.1 | 47.1 | 0.36 |
| 120 | 60 | 4 | 8 | 4 | 10.478 | 13.348 | 240.7 | 81.2 | 4.247 | 2.467 | 200.4 | 51.7 | 0.36 |
| 120 | 60 | 5 | 10 | 5 | 12.84 | 16.356 | 287 | 96 | 4.189 | 2.423 | 240.9 | 62.8 | 0.36 |
| 120 | 60 | 6 | 12 | 6 | 15.098 | 19.233 | 328 | 108.8 | 4.13 | 2.378 | 277.4 | 73 | 0.36 |
| 120 | 80 | 3 | 6 | 3 | 8.955 | 11.408 | 230.2 | 123.4 | 4.492 | 3.289 | 255.1 | 53.9 | 0.4 |
| 120 | 80 | 4 | 8 | 4 | 11.734 | 14.948 | 294.6 | 157.3 | 4.439 | 3.244 | 330.4 | 70.3 | 0.4 |
| 120 | 80 | 5 | 10 | 5 | 14.41 | 18.356 | 353.1 | 187.8 | 4.386 | 3.198 | 400.7 | 85.8 | 0.4 |
| 120 | 80 | 6 | 12 | 6 | 16.982 | 21.633 | 406.1 | 215 | 4.332 | 3.153 | 465.9 | 100.4 | 0.4 |
| 120 | 80 | 6.3 | 15.75 | 9.45 | 17.466 | 22.25 | 408.5 | 217.1 | 4.285 | 3.124 | 484.9 | 103.9 | 0.4 |
| 120 | 80 | 8 | 20 | 12 | 21.385 | 27.242 | 475.8 | 251.7 | 4.179 | 3.039 | 578.2 | 125.5 | 0.4 |
| 140 | 80 | 4 | 8 | 4 | 12.99 | 16.548 | 429.6 | 180.4 | 5.095 | 3.302 | 410.7 | 82.4 | 0.44 |
| 140 | 80 | 5 | 10 | 5 | 15.98 | 20.356 | 517.1 | 215.9 | 5.04 | 3.257 | 498.8 | 100.8 | 0.44 |
| 140 | 80 | 6 | 12 | 6 | 18.866 | 24.033 | 597 | 248 | 4.984 | 3.212 | 580.9 | 118.2 | 0.44 |
| 140 | 80 | 6.3 | 15.75 | 9.45 | 19.444 | 24.77 | 602.7 | 251.4 | 4.933 | 3.186 | 605.2 | 122.4 | 0.44 |
| 140 | 80 | 8 | 20 | 12 | 23.897 | 30.442 | 708.1 | 293.3 | 4.823 | 3.104 | 724.9 | 148.5 | 0.44 |
| 150 | 100 | 4 | 8 | 4 | 14.874 | 18.948 | 594.6 | 318.6 | 5.602 | 4.1 | 660.6 | 111.9 | 0.5 |
| 150 | 100 | 5 | 10 | 5 | 18.335 | 23.356 | 719.2 | 384 | 5.549 | 4.055 | 806.7 | 137.3 | 0.5 |
| 150 | 100 | 6 | 12 | 6 | 21.692 | 27.633 | 834.7 | 444.2 | 5.496 | 4.009 | 945 | 161.6 | 0.5 |
| 150 | 100 | 6.3 | 15.75 | 9.45 | 22.411 | 28.55 | 848.3 | 452.7 | 5.451 | 3.982 | 987.9 | 167.9 | 0.5 |
| 150 | 100 | 8 | 20 | 12 | 27.665 | 35.242 | 1008.1 | 535.7 | 5.348 | 3.899 | 1198.4 | 205.5 | 0.5 |
| 150 | 100 | 10 | 25 | 15 | 33.415 | 42.566 | 1161.7 | 614.4 | 5.224 | 3.799 | 1411.7 | 245.1 | 0.5 |
| 150 | 100 | 12 | 36 | 24 | 37.727 | 48.059 | 1207 | 641.8 | 5.011 | 3.654 | 1549.8 | 272.9 | 0.5 |
| 150 | 100 | 12.5 | 37.5 | 25 | 38.892 | 49.544 | 1225 | 651.3 | 4.972 | 3.626 | 1580.5 | 279.8 | 0.5 |
| 160 | 80 | 4 | 8 | 4 | 14.246 | 18.148 | 597.7 | 203.5 | 5.739 | 3.349 | 493.1 | 94.6 | 0.48 |
| 160 | 80 | 5 | 10 | 5 | 17.55 | 22.356 | 721.7 | 244.1 | 5.682 | 3.304 | 599.5 | 115.8 | 0.48 |
| 160 | 80 | 6 | 12 | 6 | 20.75 | 26.433 | 836 | 280.9 | 5.624 | 3.26 | 698.9 | 135.9 | 0.48 |
| 160 | 80 | 6.3 | 15.75 | 9.45 | 21.422 | 27.29 | 846.5 | 285.7 | 5.569 | 3.236 | 728.6 | 141 | 0.48 |
| 160 | 80 | 8 | 20 | 12 | 26.409 | 33.642 | 1001.2 | 334.9 | 5.455 | 3.155 | 875.2 | 171.6 | 0.48 |
| 160 | 80 | 10 | 25 | 15 | 31.845 | 40.566 | 1146.3 | 379.8 | 5.316 | 3.06 | 1017.2 | 203.1 | 0.48 |
| 160 | 80 | 12.5 | 37.5 | 25 | 36.929 | 47.044 | 1184.6 | 395.8 | 5.018 | 2.9 | 1104.5 | 227.9 | 0.48 |
| 180 | 100 | 4 | 8 | 4 | 16.758 | 21.348 | 926 | 373.9 | 6.586 | 4.185 | 852.7 | 134.9 | 0.56 |
| 180 | 100 | 5 | 10 | 5 | 20.69 | 26.356 | 1124.2 | 451.8 | 6.531 | 4.14 | 1042.6 | 165.8 | 0.56 |
| 180 | 100 | 6 | 12 | 6 | 24.518 | 31.233 | 1309.6 | 523.8 | 6.475 | 4.095 | 1222.9 | 195.4 | 0.56 |
| 180 | 100 | 6.3 | 15.75 | 9.45 | 25.379 | 32.33 | 1335 | 535.8 | 6.426 | 4.071 | 1279.1 | 203.4 | 0.56 |
| 180 | 100 | 8 | 20 | 12 | 31.433 | 40.042 | 1598.5 | 637.5 | 6.318 | 3.99 | 1556.7 | 249.7 | 0.56 |
| 180 | 100 | 10 | 25 | 15 | 38.125 | 48.566 | 1859.5 | 736.4 | 6.188 | 3.894 | 1842.4 | 299.1 | 0.56 |
| 180 | 100 | 12 | 36 | 24 | 43.379 | 55.259 | 1965.1 | 782.1 | 5.963 | 3.762 | 2046.4 | 336.3 | 0.56 |
| 180 | 100 | 12.5 | 37.5 | 25 | 44.779 | 57.044 | 2001 | 795.8 | 5.923 | 3.735 | 2092 | 345.4 | 0.56 |
| 200 | 100 | 4 | 8 | 4 | 18.014 | 22.948 | 1199.7 | 410.8 | 7.23 | 4.231 | 984.2 | 150.3 | 0.6 |
| 200 | 100 | 5 | 10 | 5 | 22.26 | 28.356 | 1459.3 | 496.9 | 7.174 | 4.186 | 1203.9 | 184.8 | 0.6 |
| 200 | 100 | 6 | 12 | 6 | 26.402 | 33.633 | 1703.3 | 576.9 | 7.116 | 4.142 | 1413 | 218 | 0.6 |
| 200 | 100 | 6.3 | 15.75 | 9.45 | 27.357 | 34.85 | 1739.2 | 591.1 | 7.064 | 4.119 | 1478.2 | 227 | 0.6 |
| 200 | 100 | 8 | 20 | 12 | 33.945 | 43.242 | 2090.8 | 705.4 | 6.954 | 4.039 | 1801.5 | 279.1 | 0.6 |
| 200 | 100 | 10 | 25 | 15 | 41.265 | 52.566 | 2444.4 | 817.7 | 6.819 | 3.944 | 2136.6 | 335.1 | 0.6 |
| 200 | 100 | 12 | 36 | 24 | 47.147 | 60.059 | 2606.7 | 875.6 | 6.588 | 3.818 | 2385.5 | 378.5 | 0.6 |
| 200 | 100 | 12.5 | 37.5 | 25 | 48.704 | 62.044 | 2658.9 | 892.2 | 6.546 | 3.792 | 2441.4 | 389.2 | 0.6 |
| 200 | 120 | 4 | 8 | 4 | 19.27 | 24.548 | 1353.4 | 617.7 | 7.425 | 5.016 | 1344 | 181.6 | 0.64 |
| 200 | 120 | 5 | 10 | 5 | 23.83 | 30.356 | 1649.4 | 750.1 | 7.371 | 4.971 | 1649.5 | 223.8 | 0.64 |
| 200 | 120 | 6 | 12 | 6 | 28.286 | 36.033 | 1929.2 | 874.3 | 7.317 | 4.926 | 1942.4 | 264.6 | 0.64 |
| 200 | 120 | 6.3 | 15.75 | 9.45 | 29.335 | 37.37 | 1975.7 | 897.7 | 7.271 | 4.901 | 2035.2 | 275.8 | 0.64 |
| 200 | 120 | 8 | 20 | 12 | 36.457 | 46.442 | 2385.9 | 1079 | 7.168 | 4.82 | 2497.1 | 340.5 | 0.64 |
| 200 | 120 | 10 | 25 | 15 | 44.405 | 56.566 | 2805.7 | 1262.1 | 7.043 | 4.724 | 2988.2 | 411.1 | 0.64 |
| 200 | 120 | 12 | 36 | 24 | 50.915 | 64.859 | 3031.4 | 1367.9 | 6.837 | 4.592 | 3387.8 | 468.8 | 0.64 |
| 200 | 120 | 12.5 | 37.5 | 25 | 52.629 | 67.044 | 3099 | 1397.4 | 6.799 | 4.565 | 3478.9 | 482.9 | 0.64 |
| 250 | 100 | 5 | 10 | 5 | 26.185 | 33.356 | 2553.8 | 609.9 | 8.75 | 4.276 | 1617.3 | 232.3 | 0.7 |
| 250 | 100 | 6 | 12 | 6 | 31.112 | 39.633 | 2992.3 | 709.6 | 8.689 | 4.231 | 1899.8 | 274.4 | 0.7 |
| 250 | 100 | 6.3 | 15.75 | 9.45 | 32.302 | 41.15 | 3065.8 | 729.6 | 8.632 | 4.211 | 1987.8 | 286 | 0.7 |
| 250 | 100 | 8 | 20 | 12 | 40.225 | 51.242 | 3714.1 | 875.1 | 8.514 | 4.132 | 2427.7 | 352.7 | 0.7 |
| 250 | 100 | 10 | 25 | 15 | 49.115 | 62.566 | 4384.2 | 1021.1 | 8.371 | 4.04 | 2888.7 | 425.1 | 0.7 |
| 250 | 100 | 12.5 | 37.5 | 25 | 58.517 | 74.544 | 4868.3 | 1133 | 8.081 | 3.899 | 3334.6 | 498.6 | 0.7 |
| 250 | 150 | 5 | 10 | 5 | 30.11 | 38.356 | 3304.2 | 1508 | 9.281 | 6.27 | 3281.3 | 354.8 | 0.8 |
| 250 | 150 | 6 | 12 | 6 | 35.822 | 45.633 | 3885.6 | 1768.3 | 9.228 | 6.225 | 3880.3 | 420.8 | 0.8 |
| 250 | 150 | 6.3 | 15.75 | 9.45 | 37.248 | 47.45 | 4001.4 | 1824.6 | 9.183 | 6.201 | 4071.4 | 439.5 | 0.8 |
| 250 | 150 | 8 | 20 | 12 | 46.505 | 59.242 | 4885.8 | 2219.2 | 9.081 | 6.12 | 5037.8 | 546.3 | 0.8 |
| 250 | 150 | 10 | 25 | 15 | 56.965 | 72.566 | 5825 | 2634.2 | 8.959 | 6.025 | 6096.5 | 665.1 | 0.8 |
| 250 | 150 | 12 | 36 | 24 | 65.987 | 84.059 | 6457.9 | 2925.3 | 8.765 | 5.899 | 7048.1 | 769.7 | 0.8 |
| 250 | 150 | 12.5 | 37.5 | 25 | 68.329 | 87.044 | 6632.7 | 3002.3 | 8.729 | 5.873 | 7269.2 | 795.4 | 0.8 |
| 260 | 180 | 5 | 10 | 5 | 33.25 | 42.356 | 4121.4 | 2349.5 | 9.864 | 7.448 | 4691.4 | 445.8 | 0.88 |
| 260 | 180 | 6.3 | 15.75 | 9.45 | 41.204 | 52.49 | 5012.7 | 2856.3 | 9.772 | 7.377 | 5837.4 | 553.5 | 0.88 |
| 260 | 180 | 8 | 20 | 12 | 51.529 | 65.642 | 6145.2 | 3493.2 | 9.676 | 7.295 | 7252.7 | 690 | 0.88 |
| 260 | 180 | 10 | 25 | 15 | 63.245 | 80.566 | 7363.3 | 4174.1 | 9.56 | 7.198 | 8823.4 | 843.1 | 0.88 |
| 260 | 180 | 12 | 36 | 24 | 73.523 | 93.659 | 8245 | 4679.2 | 9.383 | 7.068 | 10283.4 | 981.4 | 0.88 |
| 260 | 180 | 12.5 | 37.5 | 25 | 76.179 | 97.044 | 8482.5 | 4811.9 | 9.349 | 7.042 | 10625.5 | 1015.4 | 0.88 |
| 300 | 100 | 6 | 12 | 6 | 35.822 | 45.633 | 4776.8 | 842.4 | 10.231 | 4.296 | 2398 | 330.8 | 0.8 |
| 300 | 100 | 6.3 | 15.75 | 9.45 | 37.248 | 47.45 | 4906.8 | 868.1 | 10.169 | 4.277 | 2508.9 | 345 | 0.8 |
| 300 | 100 | 10 | 25 | 15 | 56.965 | 72.566 | 7106 | 1224.4 | 9.896 | 4.108 | 3656.8 | 515.1 | 0.8 |
| 300 | 100 | 12 | 36 | 24 | 65.987 | 84.059 | 7808.3 | 1343.1 | 9.638 | 3.997 | 4137.1 | 589.7 | 0.8 |
| 300 | 150 | 6 | 12 | 6 | 40.532 | 51.633 | 6073.5 | 2079.6 | 10.846 | 6.346 | 4982.3 | 507.2 | 0.9 |
| 300 | 150 | 6.3 | 15.75 | 9.45 | 42.193 | 53.75 | 6265.6 | 2150 | 10.797 | 6.325 | 5227.3 | 530.1 | 0.9 |
| 300 | 150 | 8 | 20 | 12 | 52.785 | 67.242 | 7683.6 | 2623 | 10.69 | 6.246 | 6476.2 | 659.9 | 0.9 |
| 300 | 150 | 10 | 25 | 15 | 64.815 | 82.566 | 9209.4 | 3125 | 10.561 | 6.152 | 7851.1 | 805.1 | 0.9 |
| 300 | 150 | 12 | 36 | 24 | 75.407 | 96.059 | 10298.1 | 3498.1 | 10.354 | 6.035 | 9107 | 935.3 | 0.9 |
| 300 | 150 | 12.5 | 37.5 | 25 | 78.142 | 99.544 | 10594.2 | 3594.8 | 10.316 | 6.009 | 9400.1 | 967.3 | 0.9 |
| 300 | 150 | 16 | 48 | 32 | 96.376 | 122.772 | 12387 | 4174.4 | 10.045 | 5.831 | 11223.2 | 1173.8 | 0.9 |
| 300 | 200 | 6 | 12 | 6 | 45.242 | 57.633 | 7370.2 | 3962.2 | 11.309 | 8.291 | 8108.3 | 683.6 | 1 |
| 300 | 200 | 6.3 | 15.75 | 9.45 | 47.139 | 60.05 | 7624.4 | 4103.8 | 11.268 | 8.267 | 8515.6 | 715.1 | 1 |
| 300 | 200 | 8 | 20 | 12 | 59.065 | 75.242 | 9389.3 | 5041.7 | 11.171 | 8.186 | 10610.4 | 893.5 | 1 |
| 300 | 200 | 10 | 25 | 15 | 72.665 | 92.566 | 11312.7 | 6057.7 | 11.055 | 8.09 | 12956.3 | 1095.1 | 1 |
| 300 | 200 | 12 | 36 | 24 | 84.827 | 108.059 | 12787.8 | 6853.7 | 10.878 | 7.964 | 15183.7 | 1280.9 | 1 |
| 300 | 200 | 12.5 | 37.5 | 25 | 87.954 | 112.044 | 13178.9 | 7059.9 | 10.845 | 7.938 | 15709.3 | 1326.7 | 1 |
| 300 | 200 | 16 | 48 | 32 | 108.936 | 138.772 | 15616.7 | 8340.3 | 10.608 | 7.752 | 19104.5 | 1628.2 | 1 |
| 350 | 250 | 8 | 20 | 12 | 71.625 | 91.242 | 16001.3 | 9572.6 | 13.243 | 10.243 | 19116.9 | 1320.7 | 1.2 |
| 400 | 200 | 8 | 20 | 12 | 71.625 | 91.242 | 18974.4 | 6517.1 | 14.421 | 8.451 | 15800.8 | 1200.7 | 1.2 |
| 400 | 200 | 10 | 25 | 15 | 88.365 | 112.566 | 23002.7 | 7864.4 | 14.295 | 8.358 | 19331 | 1475.1 | 1.2 |
| 400 | 200 | 12.5 | 37.5 | 25 | 107.579 | 137.044 | 27100.5 | 9260.5 | 14.062 | 8.22 | 23522.7 | 1795.4 | 1.2 |
| 400 | 300 | 8 | 20 | 12 | 84.185 | 107.242 | 25121.8 | 16212.1 | 15.305 | 12.295 | 31156 | 1827.9 | 1.4 |
| 400 | 300 | 10 | 25 | 15 | 104.065 | 132.566 | 30609.3 | 19726 | 15.195 | 12.198 | 38362.8 | 2255.1 | 1.4 |
| 400 | 300 | 12 | 36 | 24 | 122.507 | 156.059 | 35283.9 | 22746.9 | 15.036 | 12.073 | 45452.2 | 2663.3 | 1.4 |
| 400 | 300 | 12.5 | 37.5 | 25 | 127.204 | 162.044 | 36488.5 | 23517.4 | 15.006 | 12.047 | 47152.7 | 2764.2 | 1.4 |
| 400 | 300 | 16 | 48 | 32 | 159.176 | 202.772 | 44350.3 | 28535.3 | 14.789 | 11.863 | 58557.4 | 3445.8 | 1.4 |
STEEL RECTANGULAR HOLLOW SECTION - HOT FORMED - BS EN10210 - 2:1997

| Size | Thickness | Corner Radius | Mass/m | Area of Section | Second Moment of Area | Radius Of Gyration | Torsional Constants | Section Surface Area | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B | A | C | External E | Internal D | M | A | Axis x-x Ix | Axis y-y Iy | Axis x-x rx | Axis y-y ry | Inertia J | Modulus C | As |
| mm | mm | mm | mm | mm | kg/m | cm² | cm⁴ | cm⁴ | cm | cm | cm⁴ | cm³ | m²/m |
| 50 | 25 | 2.5 | 3.75 | 2.5 | 2.695 | 3.433 | 10.4 | 3.394 | 1.741 | 0.994 | 8.351 | 5.302 | 0.15 |
| 50 | 25 | 3 | 4.5 | 3 | 3.174 | 4.043 | 11.9 | 3.825 | 1.716 | 0.973 | 9.526 | 6.132 | 0.15 |
| 50 | 30 | 2.5 | 3.75 | 2.5 | 2.891 | 3.683 | 11.8 | 5.225 | 1.791 | 1.191 | 11.6 | 6.489 | 0.16 |
| 50 | 30 | 3 | 4.5 | 3 | 3.41 | 4.343 | 13.6 | 5.939 | 1.767 | 1.169 | 13.4 | 7.542 | 0.16 |
| 50 | 30 | 3.2 | 4.8 | 3.2 | 3.611 | 4.601 | 14.2 | 6.197 | 1.757 | 1.161 | 14 | 7.939 | 0.16 |
| 50 | 30 | 3.6 | 5.4 | 3.6 | 4.005 | 5.103 | 15.4 | 6.669 | 1.738 | 1.143 | 15.2 | 8.695 | 0.16 |
| 50 | 30 | 4 | 6 | 4 | 4.387 | 5.588 | 16.5 | 7.084 | 1.718 | 1.126 | 16.3 | 9.396 | 0.16 |
| 60 | 40 | 2.5 | 3.75 | 2.5 | 3.676 | 4.683 | 22.8 | 12.1 | 2.208 | 1.605 | 25 | 10.7 | 0.2 |
| 60 | 40 | 3 | 4.5 | 3 | 4.352 | 5.543 | 26.5 | 13.9 | 2.185 | 1.583 | 29.1 | 12.6 | 0.2 |
| 60 | 40 | 3.2 | 4.8 | 3.2 | 4.616 | 5.881 | 27.8 | 14.6 | 2.175 | 1.574 | 30.6 | 13.3 | 0.2 |
| 60 | 40 | 3.6 | 5.4 | 3.6 | 5.136 | 6.543 | 30.4 | 15.9 | 2.156 | 1.557 | 33.5 | 14.7 | 0.2 |
| 60 | 40 | 4 | 6 | 4 | 5.643 | 7.188 | 32.8 | 17 | 2.137 | 1.539 | 36.3 | 16 | 0.2 |
| 60 | 40 | 5 | 7.5 | 5 | 6.854 | 8.732 | 38.1 | 19.5 | 2.089 | 1.496 | 42.3 | 18.9 | 0.2 |
| 60 | 40 | 6 | 9 | 6 | 7.986 | 10.174 | 42.3 | 21.4 | 2.04 | 1.452 | 47 | 21.5 | 0.2 |
| 60 | 40 | 6.3 | 9.45 | 6.3 | 8.31 | 10.587 | 43.4 | 21.9 | 2.025 | 1.439 | 48.2 | 22.1 | 0.2 |
| 70 | 50 | 2.5 | 3.75 | 2.5 | 4.461 | 5.683 | 39.1 | 23.1 | 2.622 | 2.017 | 45.5 | 16 | 0.24 |
| 70 | 50 | 3 | 4.5 | 3 | 5.294 | 6.743 | 45.5 | 26.8 | 2.599 | 1.995 | 53.3 | 18.8 | 0.24 |
| 70 | 50 | 3.2 | 4.8 | 3.2 | 5.621 | 7.161 | 48 | 28.2 | 2.59 | 1.986 | 56.3 | 19.9 | 0.24 |
| 70 | 50 | 3.6 | 5.4 | 3.6 | 6.266 | 7.983 | 52.8 | 30.9 | 2.571 | 1.969 | 62 | 22.1 | 0.24 |
| 70 | 50 | 4 | 6 | 4 | 6.899 | 8.788 | 57.2 | 33.5 | 2.552 | 1.951 | 67.5 | 24.1 | 0.24 |
| 70 | 50 | 5 | 7.5 | 5 | 8.424 | 10.732 | 67.3 | 39 | 2.505 | 1.907 | 79.9 | 28.9 | 0.24 |
| 70 | 50 | 6 | 9 | 6 | 9.87 | 12.574 | 75.9 | 43.7 | 2.457 | 1.864 | 90.5 | 33.2 | 0.24 |
| 70 | 50 | 6.3 | 9.45 | 6.3 | 10.289 | 13.107 | 78.2 | 44.9 | 2.443 | 1.85 | 93.3 | 34.4 | 0.24 |
| 80 | 40 | 3 | 4.5 | 3 | 5.294 | 6.743 | 54.2 | 18 | 2.836 | 1.634 | 43.6 | 17 | 0.24 |
| 80 | 40 | 3.2 | 4.8 | 3.2 | 5.621 | 7.161 | 57.2 | 18.9 | 2.826 | 1.625 | 46 | 18 | 0.24 |
| 80 | 60 | 3 | 4.5 | 3 | 6.236 | 7.943 | 72 | 46 | 3.011 | 2.406 | 87.9 | 26.3 | 0.28 |
| 80 | 60 | 3.6 | 5.4 | 3.6 | 7.397 | 9.423 | 83.9 | 53.4 | 2.984 | 2.38 | 102.8 | 30.9 | 0.28 |
| 80 | 60 | 4 | 6 | 4 | 8.155 | 10.388 | 91.3 | 58 | 2.965 | 2.362 | 112.3 | 33.9 | 0.28 |
| 80 | 60 | 5 | 7.5 | 5 | 9.994 | 12.732 | 108.4 | 68.4 | 2.919 | 2.318 | 134.3 | 40.9 | 0.28 |
| 80 | 60 | 6 | 9 | 6 | 11.754 | 14.974 | 123.5 | 77.5 | 2.872 | 2.274 | 153.8 | 47.4 | 0.28 |
| 80 | 60 | 6.3 | 9.45 | 6.3 | 12.267 | 15.627 | 127.6 | 79.9 | 2.857 | 2.261 | 159.2 | 49.2 | 0.28 |
| 80 | 40 | 4 | 6 | 4 | 6.899 | 8.788 | 68.2 | 22.2 | 2.786 | 1.591 | 54.7 | 21.7 | 0.24 |
| 80 | 40 | 5 | 7.5 | 5 | 8.424 | 10.732 | 80.3 | 25.7 | 2.735 | 1.548 | 64.2 | 25.9 | 0.24 |
| 80 | 40 | 6 | 9 | 6 | 9.87 | 12.574 | 90.5 | 28.5 | 2.683 | 1.504 | 72 | 29.6 | 0.24 |
| 80 | 40 | 6.3 | 9.45 | 6.3 | 10.289 | 13.107 | 93.3 | 29.2 | 2.668 | 1.491 | 74 | 30.6 | 0.24 |
| 90 | 50 | 3.6 | 5.4 | 3.6 | 7.397 | 9.423 | 98.3 | 38.7 | 3.23 | 2.027 | 89 | 28.7 | 0.28 |
| 90 | 50 | 4 | 6 | 4 | 8.155 | 10.388 | 107.1 | 41.9 | 3.211 | 2.009 | 97 | 31.5 | 0.28 |
| 90 | 50 | 5 | 7.5 | 5 | 9.994 | 12.732 | 127.3 | 49.2 | 3.162 | 1.966 | 115.3 | 37.9 | 0.28 |
| 90 | 50 | 6 | 9 | 6 | 11.754 | 14.974 | 145 | 55.4 | 3.112 | 1.923 | 131.3 | 43.8 | 0.28 |
| 90 | 50 | 6.3 | 9.45 | 6.3 | 12.267 | 15.627 | 149.9 | 57 | 3.097 | 1.91 | 135.7 | 45.4 | 0.28 |
| 90 | 50 | 8 | 12 | 8 | 15.035 | 19.153 | 173.6 | 64.6 | 3.01 | 1.836 | 156.3 | 53.7 | 0.28 |
| 90 | 60 | 3.6 | 5.4 | 3.6 | 7.962 | 10.143 | 111.8 | 59.1 | 3.319 | 2.414 | 122.2 | 35 | 0.3 |
| 90 | 60 | 4 | 6 | 4 | 8.783 | 11.188 | 121.9 | 64.2 | 3.301 | 2.396 | 133.5 | 38.4 | 0.3 |
| 100 | 50 | 3.6 | 5.4 | 3.6 | 7.962 | 10.143 | 128 | 42.6 | 3.552 | 2.049 | 102.9 | 32.1 | 0.3 |
| 100 | 50 | 4 | 6 | 4 | 8.783 | 11.188 | 139.6 | 46.2 | 3.532 | 2.032 | 112.2 | 35.2 | 0.3 |
| 100 | 50 | 5 | 7.5 | 5 | 10.779 | 13.732 | 166.5 | 54.3 | 3.482 | 1.989 | 133.6 | 42.4 | 0.3 |
| 100 | 50 | 6 | 9 | 6 | 12.696 | 16.174 | 190.5 | 61.2 | 3.432 | 1.945 | 152.4 | 49.1 | 0.3 |
| 100 | 50 | 6.3 | 9.45 | 6.3 | 13.256 | 16.887 | 197.1 | 63 | 3.416 | 1.932 | 157.5 | 50.9 | 0.3 |
| 100 | 50 | 8 | 12 | 8 | 16.291 | 20.753 | 229.9 | 71.7 | 3.328 | 1.859 | 182.1 | 60.5 | 0.3 |
| 100 | 60 | 3.6 | 5.4 | 3.6 | 8.527 | 10.863 | 144.7 | 64.8 | 3.65 | 2.443 | 142 | 39 | 0.32 |
| 100 | 60 | 4 | 6 | 4 | 9.411 | 11.988 | 158 | 70.5 | 3.631 | 2.425 | 155.3 | 42.8 | 0.32 |
| 100 | 60 | 5 | 7.5 | 5 | 11.564 | 14.732 | 189.1 | 83.6 | 3.583 | 2.382 | 186.3 | 51.9 | 0.32 |
| 100 | 60 | 6 | 9 | 6 | 13.638 | 17.374 | 217 | 95 | 3.534 | 2.339 | 214.3 | 60.3 | 0.32 |
| 100 | 60 | 6.3 | 9.45 | 6.3 | 14.245 | 18.147 | 224.8 | 98.1 | 3.52 | 2.326 | 222.1 | 62.7 | 0.32 |
| 100 | 60 | 8 | 12 | 8 | 17.547 | 22.353 | 263.8 | 113.3 | 3.436 | 2.252 | 260.8 | 75.2 | 0.32 |
| 100 | 80 | 4 | 6 | 4 | 10.667 | 13.588 | 194.9 | 137.6 | 3.788 | 3.182 | 252.4 | 58.2 | 0.36 |
| 100 | 80 | 5 | 7.5 | 5 | 13.134 | 16.732 | 234.3 | 164.8 | 3.742 | 3.138 | 305.5 | 70.9 | 0.36 |
| 100 | 80 | 6 | 9 | 6 | 15.522 | 19.774 | 270.1 | 189.3 | 3.696 | 3.094 | 354.4 | 82.9 | 0.36 |
| 100 | 80 | 6.3 | 9.45 | 6.3 | 16.223 | 20.667 | 280.2 | 196.2 | 3.682 | 3.081 | 368.3 | 86.3 | 0.36 |
| 100 | 80 | 8 | 12 | 8 | 20.059 | 25.553 | 331.7 | 230.9 | 3.603 | 3.006 | 440.1 | 104.6 | 0.36 |
| 100 | 80 | 10 | 15 | 10 | 24.278 | 30.927 | 380.8 | 263.2 | 3.509 | 2.917 | 509.4 | 123.3 | 0.36 |
| 120 | 60 | 4 | 6 | 4 | 10.667 | 13.588 | 248.7 | 83.1 | 4.278 | 2.473 | 200 | 51.8 | 0.36 |
| 120 | 60 | 5 | 7.5 | 5 | 13.134 | 16.732 | 299.2 | 98.8 | 4.229 | 2.43 | 240.4 | 62.9 | 0.36 |
| 120 | 60 | 6 | 9 | 6 | 15.522 | 19.774 | 345.3 | 112.6 | 4.179 | 2.386 | 277.1 | 73.3 | 0.36 |
| 120 | 80 | 4 | 6 | 4 | 11.923 | 15.188 | 302.6 | 160.7 | 4.463 | 3.253 | 329.6 | 70.4 | 0.4 |
| 120 | 80 | 5 | 7.5 | 5 | 14.704 | 18.732 | 365.4 | 192.9 | 4.417 | 3.209 | 399.8 | 85.9 | 0.4 |
| 120 | 80 | 6 | 9 | 6 | 17.406 | 22.174 | 423.3 | 222.3 | 4.369 | 3.166 | 465 | 100.7 | 0.4 |
| 120 | 80 | 6.3 | 9.45 | 6.3 | 18.201 | 23.187 | 439.8 | 230.5 | 4.355 | 3.153 | 483.6 | 104.9 | 0.4 |
| 120 | 80 | 8 | 12 | 8 | 22.571 | 28.753 | 525.3 | 272.6 | 4.274 | 3.079 | 580.6 | 127.7 | 0.4 |
| 120 | 80 | 10 | 15 | 10 | 27.418 | 34.927 | 609.5 | 312.6 | 4.177 | 2.991 | 676.3 | 151.3 | 0.4 |
| 140 | 80 | 4 | 6 | 4 | 13.179 | 16.788 | 440.6 | 183.8 | 5.123 | 3.309 | 409.8 | 82.5 | 0.44 |
| 140 | 80 | 5 | 7.5 | 5 | 16.274 | 20.732 | 534 | 221.1 | 5.075 | 3.266 | 497.7 | 100.9 | 0.44 |
| 140 | 80 | 6 | 9 | 6 | 19.29 | 24.574 | 620.9 | 255.2 | 5.027 | 3.222 | 579.7 | 118.4 | 0.44 |
| 140 | 80 | 6.3 | 9.45 | 6.3 | 20.18 | 25.707 | 645.8 | 264.8 | 5.012 | 3.209 | 603.2 | 123.5 | 0.44 |
| 140 | 80 | 8 | 12 | 8 | 25.083 | 31.953 | 776.3 | 314.2 | 4.929 | 3.136 | 726.3 | 150.7 | 0.44 |
| 140 | 80 | 10 | 15 | 10 | 30.558 | 38.927 | 908.1 | 361.9 | 4.83 | 3.049 | 849.4 | 179.3 | 0.44 |
| 150 | 100 | 5 | 7.5 | 5 | 18.629 | 23.732 | 738.7 | 392.3 | 5.579 | 4.066 | 804.8 | 137.4 | 0.5 |
| 150 | 100 | 6 | 9 | 6 | 22.116 | 28.174 | 862.3 | 455.9 | 5.532 | 4.023 | 942.7 | 161.9 | 0.5 |
| 150 | 100 | 6.3 | 9.45 | 6.3 | 23.147 | 29.487 | 897.9 | 474.1 | 5.518 | 4.01 | 982.6 | 169 | 0.5 |
| 160 | 80 | 5 | 7.5 | 5 | 17.844 | 22.732 | 744 | 249.3 | 5.721 | 3.312 | 598.1 | 115.9 | 0.48 |
| 160 | 80 | 6 | 9 | 6 | 21.174 | 26.974 | 867.7 | 288.1 | 5.672 | 3.268 | 697.4 | 136.2 | 0.48 |
| 160 | 80 | 6.3 | 9.45 | 6.3 | 22.158 | 28.227 | 903.2 | 299.1 | 5.657 | 3.255 | 725.9 | 142.1 | 0.48 |
| 180 | 100 | 6 | 9 | 6 | 24.942 | 31.774 | 1350.1 | 535.5 | 6.518 | 4.105 | 1220.1 | 195.7 | 0.56 |
| 180 | 100 | 6.3 | 9.45 | 6.3 | 26.114 | 33.267 | 1407.2 | 557.2 | 6.504 | 4.092 | 1272.2 | 204.4 | 0.56 |
| 200 | 100 | 6 | 9 | 6 | 26.826 | 34.174 | 1753.7 | 588.6 | 7.164 | 4.15 | 1409.8 | 218.3 | 0.6 |
| 200 | 100 | 6.3 | 9.45 | 6.3 | 28.092 | 35.787 | 1828.9 | 612.5 | 7.149 | 4.137 | 1470.3 | 228 | 0.6 |
RELATED PAGES
- Steel SHS Dimensional Information
- Steel CHS Dimensional Information
- Steel Beam Dimensional Information
- Steel PFC Dimensional Information
- Steel Rolled Steel Angle Dimensions
FREQUENTLY ASKED QUESTIONS
Why choose RHS over SHS?
RHS gives greater bending stiffness and strength about its strong (deeper) axis than an SHS of similar mass, making it more efficient where load is predominantly one-directional, such as a beam spanning between supports. Where load acts in more than one direction, or a symmetrical profile is wanted, SHS is usually the better choice.
Which way round should RHS be oriented in a beam application?
Generally with the deeper dimension vertical, aligned with the main bending axis, to take advantage of its higher second moment of area in that direction — check the specific design calculation for your application rather than assuming orientation.
What section properties are given in the chart?
Typically overall dimensions, wall thickness, mass per metre, cross-sectional area, and second moment of area about both axes — the values needed for both material takeoff and structural design calculations.

