Steel Beam Sizes / AISC / WT Tees / WT18x75
WT18x75 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT18x75: 17.9 in depth, 12 in flange width, 75 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT18x75 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 | 75.00 lb/ft | 112.00 kg/m |
| Depth, d | 17.90 in | 455.00 mm |
| Flange width, bf | 12.00 in | 305.00 mm |
| tw | 0.625 in | 15.900 mm |
| tf | 0.940 in | 23.900 mm |
| Area | 22.10 in² | 14,300.00 mm² |
| Ix | 698.00 in⁴ | 291,000,000 mm⁴ |
| Iy | 135.00 in⁴ | 56,200,000 mm⁴ |
| Sx | 53.10 in³ | 870,000.00 mm³ |
| Sy | 22.50 in³ | 369,000.00 mm³ |
| Zx | 95.50 in³ | 1,560,000 mm³ |
| Zy | 35.40 in³ | 580,000.00 mm³ |
| rx | 5.62 in | 143.00 mm |
| ry | 2.47 in | 62.70 mm |
| J | 5.04 in⁴ | 2,100,000 mm⁴ |
| Cw | 46.00 in⁶ | 12,400,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT18x75.
Lighter in WT18
WT18x67.5
- Weight
- 67.5 lb/ft (-10%)
- Depth
- 17.80 in (-0.6%)
- Ix
- 637.0 in⁴ (-8.7%)
Heavier in WT18
WT18x80
- Weight
- 80.0 lb/ft (+6.7%)
- Depth
- 18.00 in (+0.6%)
- Ix
- 740.0 in⁴ (+6.0%)
Another Iₓ option in WT18
WT18x85
- Weight
- 85.0 lb/ft (+13%)
- Depth
- 18.10 in (+1.1%)
- Ix
- 786.0 in⁴ (+13%)
Similar weight in WT20
WT20x74.5
- Weight
- 74.5 lb/ft (-0.7%)
- Depth
- 19.10 in (+6.7%)
- Ix
- 815.0 in⁴ (+17%)
Source: AISC Shapes Database v16.0 · Methodology