Steel Beam Sizes / AISC / HSS Rectangular / HSS 3-1/2x2-1/2x1/8
HSS 3-1/2x2-1/2x1/8 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 3-1/2x2-1/2x1/8 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 | 4.75 lb/ft | 7.07 kg/m |
| Height | 3.50 in | 88.90 mm |
| Width | 2.50 in | 63.50 mm |
| Nominal tw | 0.125 in | 3.180 mm |
| Design tw | 0.116 in | 2.950 mm |
| Area | 1.30 in² | 839.00 mm² |
| Ix | 2.23 in⁴ | 929,000.00 mm⁴ |
| Iy | 1.33 in⁴ | 553,000.00 mm⁴ |
| Sx | 1.28 in³ | 20,900.00 mm³ |
| Sy | 1.06 in³ | 17,400.00 mm³ |
| Zx | 1.54 in³ | 25,300.00 mm³ |
| Zy | 1.22 in³ | 20,100.00 mm³ |
| rx | 1.31 in | 33.20 mm |
| ry | 1.01 in | 25.60 mm |
| J | 2.67 in⁴ | 1,110,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 3-1/2x2-1/2x1/8.
Lighter in Rectangular HSS
HSS 3-1/2x2x1/8
- Weight
- 4.3 lb/ft (-8.8%)
- Depth
- 3.50 in (0.0%)
- Ix
- 1.9 in⁴ (-15%)
Heavier in Rectangular HSS
HSS 2-1/2x2x3/16
- Weight
- 5.0 lb/ft (+4.4%)
- Depth
- 2.50 in (-29%)
- Ix
- 1.1 in⁴ (-50%)
Closest Iₓ in Rectangular HSS
HSS 4x1-1/2x1/8
- Weight
- 4.3 lb/ft (-8.8%)
- Depth
- 4.00 in (+14%)
- Ix
- 2.2 in⁴ (-0.9%)
Source: AISC Shapes Database v16.0 · Methodology