Dimensions - M: M Shapes
Welcome to our M Shapes dimension page. Here you'll find the full geometric data for every Canadian M-shape — depth, flange width, web and flange thickness, and fillet radii — 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 / (mm) | Width of section (mm) | Flange thickness (mm) | Web thickness (mm) | Fillet ref: outer flange face to web-toe of fillet (mm) | Fillet ref: mid-web to flange-toe of fillet (mm) | Mass per length (kg/ | Weight per length (imperial) (lb/ | Theoretical cross-sectional area (mm^2) |
|---|---|---|---|---|---|---|---|---|---|---|
| Ds_m | Ds_i | D | B | T | W | K | K1 | Mass | Wt_i | A_Th |
| M318x18.5 | M12.5x12.4 | 318 | 95 | 5.8 | 3.9 | 14 | 10 | 18.5 | 12.4 | 2330 |
| M318x17.3 | M12.5x11.6 | 317 | 89 | 5.4 | 3.9 | 14 | 10 | 17.3 | 11.6 | 2190 |
| M310x17.6 | M12x11.8 | 305 | 78 | 5.7 | 4.5 | 14 | 10 | 17.6 | 11.8 | 2240 |
| M310x16.1 | M12x10.8 | 304 | 78 | 5.3 | 4.1 | 14 | 10 | 16.1 | 10.8 | 2060 |
| M310x14.9 | M12x10.0 | 304 | 83 | 4.6 | 3.8 | 13 | 10 | 14.9 | 10 | 1910 |
| M250x13.4 | M10x9.0 | 254 | 68 | 5.2 | 4 | 14 | 10 | 13.4 | 9 | 1710 |
| M250x11.9 | M10x8.0 | 253 | 68 | 4.6 | 3.6 | 14 | 10 | 11.9 | 8 | 1530 |
| M250x11.2 | M10x7.5 | 253 | 68 | 4.4 | 3.3 | 13 | 9 | 11.2 | 7.5 | 1430 |
| M200x9.7 | M8x6.5 | 203 | 57 | 4.8 | 3.4 | 14 | 10 | 9.7 | 6.5 | 1220 |
| M200x9.2 | M8x6.2 | 203 | 58 | 4.5 | 3.3 | 13 | 9 | 9.2 | 6.2 | 1180 |
| M150x6.6 | M6x4.4 | 152 | 47 | 4.3 | 2.9 | 10 | 6 | 6.6 | 4.4 | 834 |
| M150x5.5 | M6x3.7 | 150 | 51 | 3.3 | 2.5 | 9 | 6 | 5.5 | 3.7 | 706 |
| M130x28.1 | M5x18.9 | 127 | 127 | 10.6 | 8 | 21 | 13 | 28.1 | 18.9 | 3590 |
| M100x8.9 | M4x6.0 | 97 | 97 | 4.1 | 3.3 | 13 | 9 | 8.9 | 6 | 1140 |
| M100x6.1 | M4x4.08 | 102 | 57 | 4.3 | 2.9 | 14 | 10 | 6.1 | 4.08 | 816 |
| M75x4.3 | M3x2.9 | 76 | 57 | 3.3 | 2.3 | 13 | 10 | 4.3 | 2.9 | 588 |