Steel Beam Sizes / Europe / Angles / L 100×100×18
L 100×100×18 Steel Beam Dimensions and Properties
EN Angles · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L 100×100×18 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 | 17.61 lb/ft | 26.20 kg/m |
| Width | 3.94 in | 100.00 mm |
| Height | 3.94 in | 100.00 mm |
| t | 0.709 in | 18.000 mm |
| Area | 5.10 in² | 3,290.00 mm² |
| Ix | 6.90 in⁴ | 2,870,000 mm⁴ |
| Iy | 6.90 in⁴ | 2,870,000 mm⁴ |
| Sx | 2.55 in³ | 41,800.00 mm³ |
| Sy | 2.55 in³ | 41,800.00 mm³ |
| rx | 1.16 in | 29.50 mm |
| ry | 1.16 in | 29.50 mm |
| J | 0.90 in⁴ | 376,000.00 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L 100×100×18.
Lighter in Angles
L 150×100×14
- Weight
- 26.1 kg/m (-0.4%)
- Depth
- 150.0 mm (+50%)
- Ix
- 7,440,000 mm⁴ (+159%)
Heavier in Angles
L 120×120×15
- Weight
- 26.6 kg/m (+1.5%)
- Depth
- 120.0 mm (+20%)
- Ix
- 4,450,000 mm⁴ (+55%)
Closest Iₓ in Angles
L 120×120×9
- Weight
- 16.5 kg/m (-37%)
- Depth
- 120.0 mm (+20%)
- Ix
- 2,840,000 mm⁴ (-1.0%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology