Steel Beam Sizes / AISC / WT Tees / WT8x28.5
WT8x28.5 Steel Beam Dimensions and Properties
AISC Structural tees · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
WT8x28.5 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 | 28.50 lb/ft | 42.50 kg/m |
| Depth, d | 8.22 in | 209.00 mm |
| Flange width, bf | 7.12 in | 181.00 mm |
| tw | 0.430 in | 10.900 mm |
| tf | 0.715 in | 18.200 mm |
| Area | 8.39 in² | 5,410.00 mm² |
| Ix | 48.70 in⁴ | 20,300,000 mm⁴ |
| Iy | 21.60 in⁴ | 8,990,000 mm⁴ |
| Sx | 7.77 in³ | 127,000.00 mm³ |
| Sy | 6.06 in³ | 99,300.00 mm³ |
| Zx | 13.80 in³ | 226,000.00 mm³ |
| Zy | 9.42 in³ | 154,000.00 mm³ |
| rx | 2.41 in | 61.20 mm |
| ry | 1.60 in | 40.60 mm |
| J | 1.10 in⁴ | 458,000.00 mm⁴ |
| Cw | 1.99 in⁶ | 534,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT8x28.5.
Lighter in WT8
WT8x25
- Weight
- 25.0 lb/ft (-12%)
- Depth
- 8.13 in (-1.1%)
- Ix
- 42.3 in⁴ (-13%)
Heavier in WT8
WT8x33.5
- Weight
- 33.5 lb/ft (+18%)
- Depth
- 8.17 in (-0.6%)
- Ix
- 48.6 in⁴ (-0.2%)
Closest Iₓ in WT8
WT8x38.5
- Weight
- 38.5 lb/ft (+35%)
- Depth
- 8.26 in (+0.5%)
- Ix
- 56.9 in⁴ (+17%)
Similar weight in WT9
WT9x27.5
- Weight
- 27.5 lb/ft (-3.5%)
- Depth
- 9.06 in (+10%)
- Ix
- 59.5 in⁴ (+22%)
Source: AISC Shapes Database v16.0 · Methodology