Steel Beam Sizes / AISC / HSS Rectangular / HSS 3x1x1/8
HSS 3x1x1/8 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 3x1x1/8 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 | 3.05 lb/ft | 4.53 kg/m |
| Height | 3.00 in | 76.20 mm |
| Width | 1.00 in | 25.40 mm |
| Nominal tw | 0.125 in | 3.180 mm |
| Design tw | 0.116 in | 2.950 mm |
| Area | 0.84 in² | 542.00 mm² |
| Ix | 0.82 in⁴ | 340,000.00 mm⁴ |
| Iy | 0.14 in⁴ | 57,400.00 mm⁴ |
| Sx | 0.55 in³ | 8,930.00 mm³ |
| Sy | 0.28 in³ | 4,520.00 mm³ |
| Zx | 0.73 in³ | 11,900.00 mm³ |
| Zy | 0.33 in³ | 5,330.00 mm³ |
| rx | 0.99 in | 25.10 mm |
| ry | 0.41 in | 10.30 mm |
| J | 0.41 in⁴ | 170,000.00 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 3x1x1/8.
Lighter in Rectangular HSS
HSS 2x1x3/16
- Weight
- 3.0 lb/ft (-0.3%)
- Depth
- 2.00 in (-33%)
- Ix
- 0.4 in⁴ (-57%)
Heavier in Rectangular HSS
HSS 2-1/2x2x1/8
- Weight
- 3.5 lb/ft (+14%)
- Depth
- 2.50 in (-17%)
- Ix
- 0.8 in⁴ (+2.0%)
Closest Iₓ in Rectangular HSS
HSS 2-1/2x1-1/2x3/16
- Weight
- 4.3 lb/ft (+42%)
- Depth
- 2.50 in (-17%)
- Ix
- 0.9 in⁴ (+8.0%)
Source: AISC Shapes Database v16.0 · Methodology