Steel Beam Sizes / UK / Angles / L 300×300×30
L 300×300×30 Steel Beam Dimensions and Properties
UK Angles · v2023.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L 300×300×30 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 | 89.37 lb/ft | 133.00 kg/m |
| Width | 11.81 in | 300.00 mm |
| Height | 11.81 in | 300.00 mm |
| t | 1.181 in | 30.000 mm |
| Area | 26.35 in² | 17,000.00 mm² |
| Ix | 343.56 in⁴ | 143,000,000 mm⁴ |
| Iy | 343.56 in⁴ | 143,000,000 mm⁴ |
| Sx | 40.64 in³ | 666,000.00 mm³ |
| Sy | 40.64 in³ | 666,000.00 mm³ |
| rx | 3.61 in | 91.70 mm |
| ry | 3.61 in | 91.70 mm |
| J | 12.66 in⁴ | 5,270,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L 300×300×30.
Lighter in Angles
L 300×300×29
- Weight
- 129.0 kg/m (-3.0%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 139,000,000 mm⁴ (-2.8%)
Heavier in Angles
L 300×300×31
- Weight
- 138.0 kg/m (+3.8%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 147,000,000 mm⁴ (+2.8%)
Closest Iₓ in Angles
L 300×300×32
- Weight
- 142.0 kg/m (+6.8%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 151,000,000 mm⁴ (+5.6%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Eurocode 3 - UK National Annex · Methodology