MC8x20 – MC Shapes - American channels
MC8x20 is a channel 8 in (203 mm) deep with a 3.03 in (77 mm) flange, weighing 20 lb/ft (29.8 kg/m).
MC shapes are additional standardized channel sections that sit outside the C-shape series — extra depth and weight combinations that fill gaps the standard C series doesn't cover. They're used the same way C shapes are — framing, bracing, purlins, and general structural channel applications — and are typically specified when a project's loading or geometry calls for a specific depth-to-weight combination that only the MC series provides.
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Nearby Sections
Dimensions
| Property | Value |
|---|---|
| Nominal Weight (lb/ft) | 20.0 |
| Depth of Section (in) | 8.0 |
| Width of Section (in) | 3.03 |
| Web Thickness (in) | 0.4 |
| Flange Thickness (in) | 0.5 |
| Kdet Dimension (in) | 1.125 |
| T Dimension (in) | 5.75 |
Full sortable table: Dimensions table for this family
Section Properties
| Property | Value |
|---|---|
| Ix (in⁴) | 54.4 |
| Zx (in³) | 16.4 |
| Sx (in³) | 13.6 |
| rx (in) | 3.04 |
| Iy (in⁴) | 4.42 |
| Zy (in³) | 3.86 |
| Sy (in³) | 2.02 |
| ry (in) | 0.867 |
| J (in⁴) | 0.441 |
| Cw (in⁶) | 47.8 |
| ro (in) | 3.58 |
| H (-) | 0.779 |
| rts (in) | 1.03 |
| ho (in) | 7.5 |
Full sortable table: Section properties table for this family
