Steel Beam Sizes / AISC / WT Tees / WT5x8.5
WT5x8.5 Steel Beam Dimensions and Properties
AISC Structural tees · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
WT5x8.5 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 | 8.50 lb/ft | 12.70 kg/m |
| Depth, d | 5.06 in | 129.00 mm |
| Flange width, bf | 4.01 in | 102.00 mm |
| tw | 0.240 in | 6.100 mm |
| tf | 0.330 in | 8.380 mm |
| Area | 2.50 in² | 1,610.00 mm² |
| Ix | 6.06 in⁴ | 2,520,000 mm⁴ |
| Iy | 1.78 in⁴ | 741,000.00 mm⁴ |
| Sx | 1.62 in³ | 26,500.00 mm³ |
| Sy | 0.89 in³ | 14,500.00 mm³ |
| Zx | 2.90 in³ | 47,500.00 mm³ |
| Zy | 1.40 in³ | 22,900.00 mm³ |
| rx | 1.56 in | 39.60 mm |
| ry | 0.84 in | 21.40 mm |
| J | 0.08 in⁴ | 32,300.00 mm⁴ |
| Cw | 0.06 in⁶ | 16,400,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT5x8.5.
Lighter in WT5
WT5x7.5
- Weight
- 7.5 lb/ft (-12%)
- Depth
- 5.00 in (-1.2%)
- Ix
- 5.5 in⁴ (-10%)
Heavier in WT5
WT5x9.5
- Weight
- 9.5 lb/ft (+12%)
- Depth
- 5.12 in (+1.2%)
- Ix
- 6.7 in⁴ (+10%)
Closest Iₓ in WT5
WT5x11
- Weight
- 11.0 lb/ft (+29%)
- Depth
- 5.09 in (+0.6%)
- Ix
- 6.9 in⁴ (+14%)
Similar weight in WT6
WT6x8
- Weight
- 8.0 lb/ft (-5.9%)
- Depth
- 6.00 in (+19%)
- Ix
- 8.7 in⁴ (+44%)
Source: AISC Shapes Database v16.0 · Methodology