Steel Beam Sizes / AISC / WT Tees / WT7x21.5
WT7x21.5 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT7x21.5: 6.83 in depth, 8 in flange width, 21.5 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT7x21.5 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 | 21.50 lb/ft | 32.00 kg/m |
| Depth, d | 6.83 in | 173.00 mm |
| Flange width, bf | 8.00 in | 203.00 mm |
| tw | 0.305 in | 7.750 mm |
| tf | 0.530 in | 13.500 mm |
| Area | 6.31 in² | 4,070.00 mm² |
| Ix | 21.90 in⁴ | 9,120,000 mm⁴ |
| Iy | 22.60 in⁴ | 9,410,000 mm⁴ |
| Sx | 3.98 in³ | 65,200.00 mm³ |
| Sy | 5.65 in³ | 92,600.00 mm³ |
| Zx | 7.05 in³ | 116,000.00 mm³ |
| Zy | 8.64 in³ | 142,000.00 mm³ |
| rx | 1.86 in | 47.20 mm |
| ry | 1.89 in | 48.00 mm |
| J | 0.52 in⁴ | 217,000.00 mm⁴ |
| Cw | 0.75 in⁶ | 202,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT7x21.5.
Lighter in WT7
WT7x19
- Weight
- 19.0 lb/ft (-12%)
- Depth
- 7.05 in (+3.2%)
- Ix
- 23.3 in⁴ (+6.4%)
Heavier in WT7
WT7x24
- Weight
- 24.0 lb/ft (+12%)
- Depth
- 6.90 in (+1.0%)
- Ix
- 24.9 in⁴ (+14%)
Another Iₓ option in WT7
WT7x17
- Weight
- 17.0 lb/ft (-21%)
- Depth
- 6.99 in (+2.3%)
- Ix
- 20.9 in⁴ (-4.6%)
Similar weight in WT8
WT8x22.5
- Weight
- 22.5 lb/ft (+4.7%)
- Depth
- 8.07 in (+18%)
- Ix
- 37.8 in⁴ (+73%)
Source: AISC Shapes Database v16.0 · Methodology