Steel Beam Sizes / Europe / SHS / SHS 350×350×11
SHS 350×350×11 Steel Beam Dimensions and Properties
EN Square hollow sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
SHS 350×350×11 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 | 77.95 lb/ft | 116.00 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 13.78 in | 350.00 mm |
| t | 0.433 in | 11.000 mm |
| Area | 22.94 in² | 14,800.00 mm² |
| Ix | 677.51 in⁴ | 282,000,000 mm⁴ |
| Iy | 677.51 in⁴ | 282,000,000 mm⁴ |
| Sx | 98.25 in³ | 1,610,000 mm³ |
| Sy | 98.25 in³ | 1,610,000 mm³ |
| Zx | 114.11 in³ | 1,870,000 mm³ |
| Zy | 114.11 in³ | 1,870,000 mm³ |
| rx | 5.43 in | 138.00 mm |
| ry | 5.43 in | 138.00 mm |
| J | 1,045.09 in⁴ | 435,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 350×350×11.
Lighter in Square hollow sections
SHS 250×250×16
- Weight
- 115.0 kg/m (-0.9%)
- Depth
- 250.0 mm (-29%)
- Ix
- 133,000,000 mm⁴ (-53%)
Heavier in Square hollow sections
SHS 260×260×16
- Weight
- 120.0 kg/m (+3.4%)
- Depth
- 260.0 mm (-26%)
- Ix
- 151,000,000 mm⁴ (-46%)
Closest Iₓ in Square hollow sections
SHS 350×350×10
- Weight
- 106.0 kg/m (-8.6%)
- Depth
- 350.0 mm (0.0%)
- Ix
- 259,000,000 mm⁴ (-8.2%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology