Steel Beam Sizes / Europe / SHS / SHS 80×80×7.1
SHS 80×80×7.1 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 80×80×7.1 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 | 10.62 lb/ft | 15.80 kg/m |
| Height | 3.15 in | 80.00 mm |
| Width | 3.15 in | 80.00 mm |
| t | 0.280 in | 7.100 mm |
| Area | 3.13 in² | 2,020.00 mm² |
| Ix | 4.23 in⁴ | 1,760,000 mm⁴ |
| Iy | 4.23 in⁴ | 1,760,000 mm⁴ |
| Sx | 2.68 in³ | 43,900.00 mm³ |
| Sy | 2.68 in³ | 43,900.00 mm³ |
| Zx | 3.33 in³ | 54,500.00 mm³ |
| Zy | 3.33 in³ | 54,500.00 mm³ |
| rx | 1.16 in | 29.50 mm |
| ry | 1.16 in | 29.50 mm |
| J | 6.87 in⁴ | 2,860,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 80×80×7.1.
Lighter in Square hollow sections
SHS 70×70×8
- Weight
- 15.0 kg/m (-5.1%)
- Depth
- 70.0 mm (-12%)
- Ix
- 1,200,000 mm⁴ (-32%)
Heavier in Square hollow sections
SHS 90×90×6.3
- Weight
- 16.2 kg/m (+2.5%)
- Depth
- 90.0 mm (+13%)
- Ix
- 2,380,000 mm⁴ (+35%)
Closest Iₓ in Square hollow sections
SHS 90×90×4
- Weight
- 10.7 kg/m (-32%)
- Depth
- 90.0 mm (+13%)
- Ix
- 1,660,000 mm⁴ (-5.7%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology