# Steel Channel Size & Weight Calculator

- Canonical URL: https://www.ahner-industrial.com/channel
- Page type: webpage
- Updated: 2026-08-07

Reference American Standard steel channel dimensions, thicknesses, and weights for fabrication planning.

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The table below provides dimensions and static parameters for American Standard Steel C Channels.
All values are in imperial units.

| Designation | Depth -h- (in) | Width -w- (in) | Web Thickness -s- (in) | Sectional Area (in²) | Weight (lb/ft) | Ix (in⁴) | Iy (in⁴) | Sx (in³) | Sy (in³) |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| C 15 x 50 | 15 | 3.716 | 0.716 | 14.7 | 50 | 404 | 11.0 | 53.8 | 3.78 |
| C 15 x 40 | 15 | 3.520 | 0.520 | 11.8 | 40 | 349 | 9.23 | 46.5 | 3.37 |
| C 15 x 33.9 | 15 | 3.400 | 0.400 | 9.96 | 33.9 | 315 | 8.13 | 42.0 | 3.11 |
| C 12 x 30 | 12 | 3.170 | 0.510 | 8.82 | 30 | 162 | 5.14 | 27.0 | 2.06 |
| C 12 x 25 | 12 | 3.047 | 0.387 | 7.35 | 25 | 144 | 4.47 | 24.1 | 1.88 |
| C 12 x 20.7 | 12 | 2.942 | 0.282 | 6.09 | 20.7 | 129 | 3.88 | 21.5 | 1.73 |
| C 10 x 30 | 10 | 3.033 | 0.673 | 8.82 | 30 | 103 | 3.94 | 20.7 | 1.65 |
| C 10 x 25 | 10 | 2.886 | 0.526 | 7.35 | 25 | 91.2 | 3.36 | 18.2 | 1.48 |
| C 10 x 20 | 10 | 2.739 | 0.379 | 5.88 | 20 | 78.9 | 2.81 | 15.8 | 1.32 |
| C 10 x 15.3 | 10 | 2.600 | 0.240 | 4.49 | 15.3 | 67.4 | 2.28 | 13.5 | 1.16 |
| C 9 x 20 | 9 | 2.648 | 0.448 | 5.88 | 20 | 60.9 | 2.42 | 13.5 | 1.17 |
| C 9 x 15 | 9 | 2.485 | 0.285 | 4.41 | 15 | 51.0 | 1.93 | 11.3 | 1.01 |
| C 9 x 13.4 | 9 | 2.433 | 0.233 | 3.94 | 13.4 | 47.9 | 1.76 | 10.6 | 0.96 |
| C 8 x 18.75 | 8 | 2.527 | 0.487 | 5.51 | 18.75 | 44.0 | 1.98 | 11.0 | 1.01 |
| C 8 x 13.75 | 8 | 2.343 | 0.303 | 4.04 | 13.75 | 36.1 | 1.53 | 9.03 | 0.85 |
| C 8 x 11.5 | 8 | 2.260 | 0.220 | 3.38 | 11.5 | 32.6 | 1.32 | 8.14 | 0.78 |
| C 7 x 14.75 | 7 | 2.299 | 0.419 | 4.33 | 14.75 | 27.2 | 1.38 | 7.78 | 0.78 |
| C 7 x 12.25 | 7 | 2.194 | 0.314 | 3.60 | 12.25 | 24.2 | 1.17 | 6.93 | 0.70 |
| C 7 x 9.8 | 7 | 2.090 | 0.210 | 2.87 | 9.8 | 21.3 | 0.97 | 6.08 | 0.63 |
| C 6 x 13 | 6 | 2.157 | 0.437 | 3.83 | 13 | 17.4 | 1.05 | 5.80 | 0.64 |
| C 6 x 10.5 | 6 | 2.034 | 0.314 | 3.09 | 10.5 | 15.2 | 0.87 | 5.06 | 0.56 |
| C 6 x 8.2 | 6 | 1.920 | 0.200 | 2.40 | 8.2 | 13.1 | 0.69 | 4.38 | 0.49 |
| C 5 x 9 | 5 | 1.885 | 0.325 | 2.64 | 9 | 8.90 | 0.63 | 3.56 | 0.45 |
| C 5 x 6.7 | 5 | 1.750 | 0.190 | 1.97 | 6.7 | 7.49 | 0.48 | 3.00 | 0.38 |
| C 4 x 7.25 | 4 | 1.721 | 0.321 | 2.13 | 7.25 | 4.59 | 0.43 | 2.29 | 0.34 |
| C 4 x 5.4 | 4 | 1.584 | 0.184 | 1.59 | 5.4 | 3.85 | 0.32 | 1.93 | 0.28 |
| C 3 x 6 | 3 | 1.596 | 0.356 | 1.76 | 6 | 2.07 | 0.31 | 1.38 | 0.27 |
| C 3 x 5 | 3 | 1.498 | 0.258 | 1.47 | 5 | 1.85 | 0.25 | 1.24 | 0.23 |
| C 3 x 4.1 | 3 | 1.410 | 0.170 | 1.21 | 4.1 | 1.66 | 0.20 | 1.10 | 0.20 |

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