Steel Beam Sizes / Europe / SHS / SHS 400×400×8
SHS 400×400×8 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 400×400×8 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 | 65.79 lb/ft | 97.90 kg/m |
| Height | 15.75 in | 400.00 mm |
| Width | 15.75 in | 400.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 19.38 in² | 12,500.00 mm² |
| Ix | 766.40 in⁴ | 319,000,000 mm⁴ |
| Iy | 766.40 in⁴ | 319,000,000 mm⁴ |
| Sx | 97.03 in³ | 1,590,000 mm³ |
| Sy | 97.03 in³ | 1,590,000 mm³ |
| Zx | 111.67 in³ | 1,830,000 mm³ |
| Zy | 111.67 in³ | 1,830,000 mm³ |
| rx | 6.30 in | 160.00 mm |
| ry | 6.30 in | 160.00 mm |
| J | 1,170.02 in⁴ | 487,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 400×400×8.
Lighter in Square hollow sections
SHS 260×260×12.5
- Weight
- 95.8 kg/m (-2.1%)
- Depth
- 260.0 mm (-35%)
- Ix
- 124,000,000 mm⁴ (-61%)
Heavier in Square hollow sections
SHS 300×300×11
- Weight
- 98.8 kg/m (+0.9%)
- Depth
- 300.0 mm (-25%)
- Ix
- 174,000,000 mm⁴ (-45%)
Closest Iₓ in Square hollow sections
SHS 350×350×12.5
- Weight
- 131.0 kg/m (+34%)
- Depth
- 350.0 mm (-12%)
- Ix
- 315,000,000 mm⁴ (-1.3%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology