Steel Beam Sizes / Europe / SHS / SHS 350×350×12.5
SHS 350×350×12.5 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 350×350×12.5 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 | 88.03 lb/ft | 131.00 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 13.78 in | 350.00 mm |
| t | 0.492 in | 12.500 mm |
| Area | 25.89 in² | 16,700.00 mm² |
| Ix | 756.79 in⁴ | 315,000,000 mm⁴ |
| Iy | 756.79 in⁴ | 315,000,000 mm⁴ |
| Sx | 109.84 in³ | 1,800,000 mm³ |
| Sy | 109.84 in³ | 1,800,000 mm³ |
| Zx | 128.76 in³ | 2,110,000 mm³ |
| Zy | 128.76 in³ | 2,110,000 mm³ |
| rx | 5.39 in | 137.00 mm |
| ry | 5.39 in | 137.00 mm |
| J | 1,174.83 in⁴ | 489,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 350×350×12.5.
Lighter in Square hollow sections
SHS 300×300×14.2
- Weight
- 126.0 kg/m (-3.8%)
- Depth
- 300.0 mm (-14%)
- Ix
- 216,000,000 mm⁴ (-31%)
Heavier in Square hollow sections
SHS 400×400×11
- Weight
- 133.0 kg/m (+1.5%)
- Depth
- 400.0 mm (+14%)
- Ix
- 427,000,000 mm⁴ (+36%)
Closest Iₓ in Square hollow sections
SHS 400×400×8
- Weight
- 97.9 kg/m (-25%)
- Depth
- 400.0 mm (+14%)
- Ix
- 319,000,000 mm⁴ (+1.3%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology