Steel Beam Sizes / UK / RHS / RHS 160×80×7.1
RHS 160×80×7.1 Steel Beam Dimensions and Properties
UK Rectangular hollow sections · v2023.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
RHS 160×80×7.1 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 | 16.60 lb/ft | 24.70 kg/m |
| Height | 6.30 in | 160.00 mm |
| Width | 3.15 in | 80.00 mm |
| t | 0.280 in | 7.100 mm |
| Area | 4.88 in² | 3,150.00 mm² |
| Ix | 23.88 in⁴ | 9,940,000 mm⁴ |
| Iy | 7.86 in⁴ | 3,270,000 mm⁴ |
| Sx | 7.57 in³ | 124,000.00 mm³ |
| Sy | 4.99 in³ | 81,700.00 mm³ |
| Zx | 9.64 in³ | 158,000.00 mm³ |
| Zy | 5.85 in³ | 95,900.00 mm³ |
| rx | 2.21 in | 56.20 mm |
| ry | 1.27 in | 32.20 mm |
| J | 19.32 in⁴ | 8,040,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 160×80×7.1.
Lighter in Rectangular hollow sections
RHS 120×80×8.8
- Weight
- 24.5 kg/m (-0.8%)
- Depth
- 120.0 mm (-25%)
- Ix
- 5,610,000 mm⁴ (-44%)
Heavier in Rectangular hollow sections
RHS 200×100×5.6
- Weight
- 25.1 kg/m (+1.6%)
- Depth
- 200.0 mm (+25%)
- Ix
- 16,500,000 mm⁴ (+66%)
Closest Iₓ in Rectangular hollow sections
RHS 150×100×7.1
- Weight
- 25.9 kg/m (+4.9%)
- Depth
- 150.0 mm (-6.3%)
- Ix
- 9,900,000 mm⁴ (-0.4%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology