Steel Beam Sizes / AISC / HSS Rectangular / HSS 4x3x3/8
HSS 4x3x3/8 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 4x3x3/8 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 | 14.72 lb/ft | 21.80 kg/m |
| Height | 4.00 in | 102.00 mm |
| Width | 3.00 in | 76.20 mm |
| Nominal tw | 0.375 in | 9.530 mm |
| Design tw | 0.349 in | 8.860 mm |
| Area | 4.09 in² | 2,640.00 mm² |
| Ix | 7.93 in⁴ | 3,300,000 mm⁴ |
| Iy | 5.01 in⁴ | 2,090,000 mm⁴ |
| Sx | 3.97 in³ | 65,100.00 mm³ |
| Sy | 3.34 in³ | 54,700.00 mm³ |
| Zx | 5.12 in³ | 83,900.00 mm³ |
| Zy | 4.18 in³ | 68,500.00 mm³ |
| rx | 1.39 in | 35.30 mm |
| ry | 1.11 in | 28.20 mm |
| J | 10.60 in⁴ | 4,410,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 4x3x3/8.
Lighter in Rectangular HSS
HSS 10x2x3/16
- Weight
- 14.5 lb/ft (-1.3%)
- Depth
- 10.00 in (+150%)
- Ix
- 41.0 in⁴ (+417%)
Heavier in Rectangular HSS
HSS 5x3x5/16
- Weight
- 14.8 lb/ft (+0.7%)
- Depth
- 5.00 in (+25%)
- Ix
- 12.6 in⁴ (+59%)
Closest Iₓ in Rectangular HSS
HSS 5x2x1/4
- Weight
- 10.5 lb/ft (-29%)
- Depth
- 5.00 in (+25%)
- Ix
- 8.1 in⁴ (+1.9%)
Source: AISC Shapes Database v16.0 · Methodology