Steel Beam Sizes / UK / Angles / L 180×180×20
L 180×180×20 Dimensions, Weight and Section Properties
UK Angles · v2023.11
L 180×180×20: 180 mm depth, 53.7 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
L 180×180×20 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 | 36.08 lb/ft | 53.70 kg/m |
| Width | 7.09 in | 180.00 mm |
| Height | 7.09 in | 180.00 mm |
| t | 0.787 in | 20.000 mm |
| Area | 10.59 in² | 6,830.00 mm² |
| Ix | 49.01 in⁴ | 20,400,000 mm⁴ |
| Iy | 49.01 in⁴ | 20,400,000 mm⁴ |
| Sx | 9.70 in³ | 159,000.00 mm³ |
| Sy | 9.70 in³ | 159,000.00 mm³ |
| rx | 2.15 in | 54.70 mm |
| ry | 2.15 in | 54.70 mm |
| J | 2.32 in⁴ | 965,000.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus L 180×180×20.
Lighter in Angles
L 200×200×17
- Weight
- 51.4 kg/m (-4.3%)
- Depth
- 200.0 mm (+11%)
- Ix
- 24,700,000 mm⁴ (+21%)
Heavier in Angles
L 200×200×18
- Weight
- 54.3 kg/m (+1.1%)
- Depth
- 200.0 mm (+11%)
- Ix
- 26,000,000 mm⁴ (+27%)
Another Iₓ option in Angles
L 200×200×14
- Weight
- 42.7 kg/m (-20%)
- Depth
- 200.0 mm (+11%)
- Ix
- 20,800,000 mm⁴ (+2.0%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Eurocode 3 - UK National Annex · Methodology