Steel Beam Sizes / Europe / SHS / SHS 120×120×7.1
SHS 120×120×7.1 Dimensions, Weight and Section Properties
EN Square hollow sections · v2026.1
SHS 120×120×7.1: 24.7 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
SHS 120×120×7.1 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 | 16.60 lb/ft | 24.70 kg/m |
| Height | 4.72 in | 120.00 mm |
| Width | 4.72 in | 120.00 mm |
| t | 0.280 in | 7.100 mm |
| Area | 4.88 in² | 3,150.00 mm² |
| Ix | 15.93 in⁴ | 6,630,000 mm⁴ |
| Iy | 15.93 in⁴ | 6,630,000 mm⁴ |
| Sx | 6.71 in³ | 110,000.00 mm³ |
| Sy | 6.71 in³ | 110,000.00 mm³ |
| Zx | 8.12 in³ | 133,000.00 mm³ |
| Zy | 8.12 in³ | 133,000.00 mm³ |
| rx | 1.81 in | 45.90 mm |
| ry | 1.81 in | 45.90 mm |
| J | 25.23 in⁴ | 10,500,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus SHS 120×120×7.1.
Lighter in Square hollow sections
SHS 100×100×8.8
- Weight
- 24.5 kg/m (-0.8%)
- Depth
- 100.0 mm (-17%)
- Ix
- 4,260,000 mm⁴ (-36%)
Heavier in Square hollow sections
SHS 150×150×5.6
- Weight
- 25.1 kg/m (+1.6%)
- Depth
- 150.0 mm (+25%)
- Ix
- 11,100,000 mm⁴ (+67%)
Another Iₓ option in Square hollow sections
SHS 120×120×6.3
- Weight
- 22.2 kg/m (-10%)
- Depth
- 120.0 mm (0.0%)
- Ix
- 6,030,000 mm⁴ (-9.0%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology