Steel Beam Sizes / AISC / WT Tees / WT9x20
WT9x20 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT9x20: 8.95 in depth, 6.02 in flange width, 20 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT9x20 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 | 20.00 lb/ft | 30.00 kg/m |
| Depth, d | 8.95 in | 227.00 mm |
| Flange width, bf | 6.02 in | 153.00 mm |
| tw | 0.315 in | 8.000 mm |
| tf | 0.525 in | 13.300 mm |
| Area | 5.88 in² | 3,790.00 mm² |
| Ix | 44.80 in⁴ | 18,600,000 mm⁴ |
| Iy | 9.55 in⁴ | 3,980,000 mm⁴ |
| Sx | 6.73 in³ | 110,000.00 mm³ |
| Sy | 3.17 in³ | 51,900.00 mm³ |
| Zx | 12.00 in³ | 197,000.00 mm³ |
| Zy | 4.97 in³ | 81,400.00 mm³ |
| rx | 2.76 in | 70.10 mm |
| ry | 1.27 in | 32.30 mm |
| J | 0.40 in⁴ | 168,000.00 mm⁴ |
| Cw | 0.79 in⁶ | 212,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT9x20.
Lighter in WT9
WT9x17.5
- Weight
- 17.5 lb/ft (-13%)
- Depth
- 8.85 in (-1.1%)
- Ix
- 40.1 in⁴ (-10%)
Heavier in WT9
WT9x23
- Weight
- 23.0 lb/ft (+15%)
- Depth
- 9.03 in (+0.9%)
- Ix
- 52.1 in⁴ (+16%)
Another Iₓ option in WT9
WT9x25
- Weight
- 25.0 lb/ft (+25%)
- Depth
- 9.00 in (+0.6%)
- Ix
- 53.5 in⁴ (+19%)
Similar weight in WT8
WT8x20
- Weight
- 20.0 lb/ft (0.0%)
- Depth
- 8.01 in (-11%)
- Ix
- 33.1 in⁴ (-26%)
Source: AISC Shapes Database v16.0 · Methodology