Steel Beam Sizes / Europe / RHS / RHS 160×80×8
RHS 160×80×8 Steel Beam Dimensions and Properties
EN Rectangular hollow sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
RHS 160×80×8 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 | 18.55 lb/ft | 27.60 kg/m |
| Height | 6.30 in | 160.00 mm |
| Width | 3.15 in | 80.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 5.46 in² | 3,520.00 mm² |
| Ix | 26.19 in⁴ | 10,900,000 mm⁴ |
| Iy | 8.55 in⁴ | 3,560,000 mm⁴ |
| Sx | 8.30 in³ | 136,000.00 mm³ |
| Sy | 5.43 in³ | 89,000.00 mm³ |
| Zx | 10.68 in³ | 175,000.00 mm³ |
| Zy | 6.47 in³ | 106,000.00 mm³ |
| rx | 2.19 in | 55.70 mm |
| ry | 1.25 in | 31.80 mm |
| J | 21.21 in⁴ | 8,830,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 160×80×8.
Lighter in Rectangular hollow sections
RHS 120×80×10
- Weight
- 27.4 kg/m (-0.7%)
- Depth
- 120.0 mm (-25%)
- Ix
- 6,090,000 mm⁴ (-44%)
Heavier in Rectangular hollow sections
RHS 200×100×6.3
- Weight
- 28.1 kg/m (+1.8%)
- Depth
- 200.0 mm (+25%)
- Ix
- 18,300,000 mm⁴ (+68%)
Closest Iₓ in Rectangular hollow sections
RHS 150×100×8
- Weight
- 28.9 kg/m (+4.7%)
- Depth
- 150.0 mm (-6.3%)
- Ix
- 10,900,000 mm⁴ (0.0%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology