Steel Beam Sizes / Europe / RHS / RHS 180×100×5.6
RHS 180×100×5.6 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 180×100×5.6 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 | 15.72 lb/ft | 23.40 kg/m |
| Height | 7.09 in | 180.00 mm |
| Width | 3.94 in | 100.00 mm |
| t | 0.220 in | 5.600 mm |
| Area | 4.62 in² | 2,980.00 mm² |
| Ix | 30.51 in⁴ | 12,700,000 mm⁴ |
| Iy | 12.16 in⁴ | 5,060,000 mm⁴ |
| Sx | 8.60 in³ | 141,000.00 mm³ |
| Sy | 6.16 in³ | 101,000.00 mm³ |
| Zx | 10.62 in³ | 174,000.00 mm³ |
| Zy | 7.02 in³ | 115,000.00 mm³ |
| rx | 2.57 in | 65.40 mm |
| ry | 1.62 in | 41.20 mm |
| J | 27.63 in⁴ | 11,500,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 180×100×5.6.
Lighter in Rectangular hollow sections
RHS 150×100×6.3
- Weight
- 23.1 kg/m (-1.3%)
- Depth
- 150.0 mm (-17%)
- Ix
- 8,980,000 mm⁴ (-29%)
Heavier in Rectangular hollow sections
RHS 200×120×5
- Weight
- 24.1 kg/m (+3.0%)
- Depth
- 200.0 mm (+11%)
- Ix
- 16,800,000 mm⁴ (+32%)
Closest Iₓ in Rectangular hollow sections
RHS 150×100×10
- Weight
- 35.3 kg/m (+51%)
- Depth
- 150.0 mm (-17%)
- Ix
- 12,800,000 mm⁴ (+0.8%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology