Steel Beam Sizes / AISC / WT Tees / WT18x131
WT18x131 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT18x131: 18.4 in depth, 16.6 in flange width, 131 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT18x131 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 | 131.00 lb/ft | 195.00 kg/m |
| Depth, d | 18.40 in | 467.00 mm |
| Flange width, bf | 16.60 in | 422.00 mm |
| tw | 0.840 in | 21.300 mm |
| tf | 1.440 in | 36.600 mm |
| Area | 38.50 in² | 24,800.00 mm² |
| Ix | 1,110.00 in⁴ | 462,000,000 mm⁴ |
| Iy | 545.00 in⁴ | 227,000,000 mm⁴ |
| Sx | 77.50 in³ | 1,270,000 mm³ |
| Sy | 65.80 in³ | 1,080,000 mm³ |
| Zx | 137.00 in³ | 2,250,000 mm³ |
| Zy | 102.00 in³ | 1,670,000 mm³ |
| rx | 5.36 in | 136.00 mm |
| ry | 3.76 in | 95.50 mm |
| J | 20.80 in⁴ | 8,660,000 mm⁴ |
| Cw | 185.00 in⁶ | 49,700,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT18x131.
Lighter in WT18
WT18x128
- Weight
- 128.0 lb/ft (-2.3%)
- Depth
- 18.70 in (+1.6%)
- Ix
- 1,210.0 in⁴ (+9.0%)
Heavier in WT18
WT18x141
- Weight
- 141.0 lb/ft (+7.6%)
- Depth
- 18.60 in (+1.1%)
- Ix
- 1,190.0 in⁴ (+7.2%)
Another Iₓ option in WT18
WT18x116
- Weight
- 116.0 lb/ft (-11%)
- Depth
- 18.60 in (+1.1%)
- Ix
- 1,080.0 in⁴ (-2.7%)
Similar weight in WT16
WT16.5x131.5
- Weight
- 131.5 lb/ft (+0.4%)
- Depth
- 17.30 in (-6.0%)
- Ix
- 943.0 in⁴ (-15%)
Source: AISC Shapes Database v16.0 · Methodology