Steel Beam Sizes / UK / Angles / L 250×250×21
L 250×250×21 Dimensions, Weight and Section Properties
UK Angles · v2023.11
L 250×250×21: 250 mm depth, 78.9 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
L 250×250×21 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 | 53.02 lb/ft | 78.90 kg/m |
| Width | 9.84 in | 250.00 mm |
| Height | 9.84 in | 250.00 mm |
| t | 0.827 in | 21.000 mm |
| Area | 15.66 in² | 10,100.00 mm² |
| Ix | 142.47 in⁴ | 59,300,000 mm⁴ |
| Iy | 142.47 in⁴ | 59,300,000 mm⁴ |
| Sx | 20.08 in³ | 329,000.00 mm³ |
| Sy | 20.08 in³ | 329,000.00 mm³ |
| rx | 3.02 in | 76.80 mm |
| ry | 3.02 in | 76.80 mm |
| J | 3.70 in⁴ | 1,540,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus L 250×250×21.
Lighter in Angles
L 200×200×26
- Weight
- 76.6 kg/m (-2.9%)
- Depth
- 200.0 mm (-20%)
- Ix
- 35,600,000 mm⁴ (-40%)
Heavier in Angles
L 200×200×27
- Weight
- 79.3 kg/m (+0.5%)
- Depth
- 200.0 mm (-20%)
- Ix
- 36,700,000 mm⁴ (-38%)
Another Iₓ option in Angles
L 250×250×22
- Weight
- 82.5 kg/m (+4.6%)
- Depth
- 250.0 mm (0.0%)
- Ix
- 61,800,000 mm⁴ (+4.2%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Eurocode 3 - UK National Annex · Methodology