Steel Beam Sizes / Europe / RHS / RHS 350×250×11
RHS 350×250×11 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 350×250×11 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 | 66.39 lb/ft | 98.80 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 9.84 in | 250.00 mm |
| t | 0.433 in | 11.000 mm |
| Area | 19.53 in² | 12,600.00 mm² |
| Ix | 526.15 in⁴ | 219,000,000 mm⁴ |
| Iy | 312.33 in⁴ | 130,000,000 mm⁴ |
| Sx | 76.28 in³ | 1,250,000 mm³ |
| Sy | 63.46 in³ | 1,040,000 mm³ |
| Zx | 91.54 in³ | 1,500,000 mm³ |
| Zy | 72.62 in³ | 1,190,000 mm³ |
| rx | 5.20 in | 132.00 mm |
| ry | 3.98 in | 101.00 mm |
| J | 612.64 in⁴ | 255,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 350×250×11.
Lighter in Rectangular hollow sections
RHS 500×300×8
- Weight
- 97.9 kg/m (-0.9%)
- Depth
- 500.0 mm (+43%)
- Ix
- 437,000,000 mm⁴ (+100%)
Heavier in Rectangular hollow sections
RHS 260×180×16
- Weight
- 100.0 kg/m (+1.2%)
- Depth
- 260.0 mm (-26%)
- Ix
- 112,000,000 mm⁴ (-49%)
Closest Iₓ in Rectangular hollow sections
RHS 400×150×11
- Weight
- 90.2 kg/m (-8.7%)
- Depth
- 400.0 mm (+14%)
- Ix
- 218,000,000 mm⁴ (-0.5%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology