Steel Beam Sizes / Europe / RHS / RHS 350×200×8
RHS 350×200×8 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 350×200×8 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 | 44.69 lb/ft | 66.50 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 7.87 in | 200.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 13.14 in² | 8,480.00 mm² |
| Ix | 338.75 in⁴ | 141,000,000 mm⁴ |
| Iy | 142.23 in⁴ | 59,200,000 mm⁴ |
| Sx | 49.19 in³ | 806,000.00 mm³ |
| Sy | 36.13 in³ | 592,000.00 mm³ |
| Zx | 59.86 in³ | 981,000.00 mm³ |
| Zy | 40.64 in³ | 666,000.00 mm³ |
| rx | 5.08 in | 129.00 mm |
| ry | 3.29 in | 83.60 mm |
| J | 314.73 in⁴ | 131,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 350×200×8.
Lighter in Rectangular hollow sections
RHS 300×200×8.8
- Weight
- 66.0 kg/m (-0.8%)
- Depth
- 300.0 mm (-14%)
- Ix
- 106,000,000 mm⁴ (-25%)
Heavier in Rectangular hollow sections
RHS 220×120×14.2
- Weight
- 67.8 kg/m (+2.0%)
- Depth
- 220.0 mm (-37%)
- Ix
- 50,000,000 mm⁴ (-65%)
Closest Iₓ in Rectangular hollow sections
RHS 300×200×12.5
- Weight
- 91.9 kg/m (+38%)
- Depth
- 300.0 mm (-14%)
- Ix
- 143,000,000 mm⁴ (+1.4%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology