Steel Beam Sizes / Europe / RHS / RHS 350×250×8
RHS 350×250×8 Steel Beam Dimensions and Properties
EN Rectangular hollow sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
RHS 350×250×8 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 | 48.92 lb/ft | 72.80 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 9.84 in | 250.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 14.38 in² | 9,280.00 mm² |
| Ix | 394.01 in⁴ | 164,000,000 mm⁴ |
| Iy | 235.45 in⁴ | 98,000,000 mm⁴ |
| Sx | 57.36 in³ | 940,000.00 mm³ |
| Sy | 47.84 in³ | 784,000.00 mm³ |
| Zx | 68.35 in³ | 1,120,000 mm³ |
| Zy | 54.19 in³ | 888,000.00 mm³ |
| rx | 5.24 in | 133.00 mm |
| ry | 4.06 in | 103.00 mm |
| J | 456.48 in⁴ | 190,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 350×250×8.
Lighter in Rectangular hollow sections
RHS 250×150×12.5
- Weight
- 72.3 kg/m (-0.7%)
- Depth
- 250.0 mm (-29%)
- Ix
- 73,900,000 mm⁴ (-55%)
Heavier in Rectangular hollow sections
RHS 300×250×8.8
- Weight
- 72.9 kg/m (+0.1%)
- Depth
- 300.0 mm (-14%)
- Ix
- 124,000,000 mm⁴ (-24%)
Closest Iₓ in Rectangular hollow sections
RHS 400×150×8
- Weight
- 66.5 kg/m (-8.7%)
- Depth
- 400.0 mm (+14%)
- Ix
- 165,000,000 mm⁴ (+0.6%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology