Steel Beam Sizes / UK / RHS / RHS 180×100×11
RHS 180×100×11 Dimensions, Weight and Section Properties
UK Rectangular hollow sections · v2023.11
RHS 180×100×11: 43.5 kg/m weight. View the full dimensions and properties in imperial and metric units below.
Need this steel supplied or fabricated?
Request project pricing for delivery in the United States or Canada.
Get a steel quote →Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
RHS 180×100×11 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 | 29.23 lb/ft | 43.50 kg/m |
| Height | 7.09 in | 180.00 mm |
| Width | 3.94 in | 100.00 mm |
| t | 0.433 in | 11.000 mm |
| Area | 8.60 in² | 5,550.00 mm² |
| Ix | 52.37 in⁴ | 21,800,000 mm⁴ |
| Iy | 20.16 in⁴ | 8,390,000 mm⁴ |
| Sx | 14.83 in³ | 243,000.00 mm³ |
| Sy | 10.25 in³ | 168,000.00 mm³ |
| Zx | 18.98 in³ | 311,000.00 mm³ |
| Zy | 12.39 in³ | 203,000.00 mm³ |
| rx | 2.47 in | 62.70 mm |
| ry | 1.53 in | 38.90 mm |
| J | 48.05 in⁴ | 20,000,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus RHS 180×100×11.
Lighter in Rectangular hollow sections
RHS 200×100×10
- Weight
- 43.1 kg/m (-0.9%)
- Depth
- 200.0 mm (+11%)
- Ix
- 26,600,000 mm⁴ (+22%)
Heavier in Rectangular hollow sections
RHS 220×120×8.8
- Weight
- 43.9 kg/m (+0.9%)
- Depth
- 220.0 mm (+22%)
- Ix
- 34,700,000 mm⁴ (+59%)
Another Iₓ option in Rectangular hollow sections
RHS 200×150×5.6
- Weight
- 29.5 kg/m (-32%)
- Depth
- 200.0 mm (+11%)
- Ix
- 21,800,000 mm⁴ (0.0%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology