Steel Beam Sizes / AISC / HSS Rectangular / HSS 8x3x1/4
HSS 8x3x1/4 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 8x3x1/4 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 | 17.32 lb/ft | 25.70 kg/m |
| Height | 8.00 in | 203.00 mm |
| Width | 3.00 in | 76.20 mm |
| Nominal tw | 0.250 in | 6.350 mm |
| Design tw | 0.233 in | 5.920 mm |
| Area | 4.77 in² | 3,080.00 mm² |
| Ix | 35.50 in⁴ | 14,800,000 mm⁴ |
| Iy | 7.49 in⁴ | 3,120,000 mm⁴ |
| Sx | 8.88 in³ | 146,000.00 mm³ |
| Sy | 4.99 in³ | 81,800.00 mm³ |
| Zx | 11.50 in³ | 188,000.00 mm³ |
| Zy | 5.70 in³ | 93,400.00 mm³ |
| rx | 2.73 in | 69.30 mm |
| ry | 1.25 in | 31.80 mm |
| J | 20.80 in⁴ | 8,660,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 8x3x1/4.
Lighter in Rectangular HSS
HSS 5x3x3/8
- Weight
- 17.3 lb/ft (-0.3%)
- Depth
- 5.00 in (-38%)
- Ix
- 14.1 in⁴ (-60%)
Heavier in Rectangular HSS
HSS 12x3x3/16
- Weight
- 18.4 lb/ft (+5.9%)
- Depth
- 12.00 in (+50%)
- Ix
- 79.6 in⁴ (+124%)
Closest Iₓ in Rectangular HSS
HSS 7x5x1/4
- Weight
- 19.0 lb/ft (+9.8%)
- Depth
- 7.00 in (-13%)
- Ix
- 35.9 in⁴ (+1.1%)
Source: AISC Shapes Database v16.0 · Methodology