Steel Beam Sizes / AISC / M-Shapes / M12.5x11.6
M12.5x11.6 Dimensions, Weight and Section Properties
AISC Miscellaneous beams · v16.0
M12.5x11.6: 12.5 in depth, 3.5 in flange width, 11.6 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
M12.5x11.6 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 11.60 lb/ft | 17.30 kg/m |
| Depth, d | 12.50 in | 318.00 mm |
| Flange width, bf | 3.50 in | 88.90 mm |
| tw | 0.155 in | 3.940 mm |
| tf | 0.211 in | 5.360 mm |
| Area | 3.40 in² | 2,190.00 mm² |
| Ix | 80.30 in⁴ | 33,400,000 mm⁴ |
| Iy | 1.51 in⁴ | 629,000.00 mm⁴ |
| Sx | 12.80 in³ | 210,000.00 mm³ |
| Sy | 0.86 in³ | 14,200.00 mm³ |
| Zx | 15.00 in³ | 246,000.00 mm³ |
| Zy | 1.37 in³ | 22,500.00 mm³ |
| rx | 4.86 in | 123.00 mm |
| ry | 0.67 in | 16.90 mm |
| J | 0.04 in⁴ | 17,200.00 mm⁴ |
| Cw | 57.10 in⁶ | 15,300,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus M12.5x11.6.
Lighter in M12
M12x10.8
- Weight
- 10.8 lb/ft (-6.9%)
- Depth
- 12.00 in (-4.0%)
- Ix
- 66.7 in⁴ (-17%)
Heavier in M12
M12x11.8
- Weight
- 11.8 lb/ft (+1.7%)
- Depth
- 12.00 in (-4.0%)
- Ix
- 72.2 in⁴ (-10%)
Another Iₓ option in M12
M12.5x12.4
- Weight
- 12.4 lb/ft (+6.9%)
- Depth
- 12.50 in (0.0%)
- Ix
- 89.3 in⁴ (+11%)
Similar weight in M10
M10x9
- Weight
- 9.0 lb/ft (-22%)
- Depth
- 10.00 in (-20%)
- Ix
- 39.0 in⁴ (-51%)
Source: AISC Shapes Database v16.0 · Methodology