Steel Beam Sizes / Europe / RHS / RHS 300×250×8
RHS 300×250×8 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 300×250×8 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 | 44.69 lb/ft | 66.50 kg/m |
| Height | 11.81 in | 300.00 mm |
| Width | 9.84 in | 250.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 13.14 in² | 8,480.00 mm² |
| Ix | 273.89 in⁴ | 114,000,000 mm⁴ |
| Iy | 207.34 in⁴ | 86,300,000 mm⁴ |
| Sx | 46.44 in³ | 761,000.00 mm³ |
| Sy | 42.11 in³ | 690,000.00 mm³ |
| Zx | 54.68 in³ | 896,000.00 mm³ |
| Zy | 48.27 in³ | 791,000.00 mm³ |
| rx | 4.57 in | 116.00 mm |
| ry | 3.98 in | 101.00 mm |
| J | 365.18 in⁴ | 152,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 300×250×8.
Lighter in Rectangular hollow sections
RHS 300×200×8.8
- Weight
- 66.0 kg/m (-0.8%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 106,000,000 mm⁴ (-7.0%)
Heavier in Rectangular hollow sections
RHS 220×120×14.2
- Weight
- 67.8 kg/m (+2.0%)
- Depth
- 220.0 mm (-27%)
- Ix
- 50,000,000 mm⁴ (-56%)
Closest Iₓ in Rectangular hollow sections
RHS 350×200×6.3
- Weight
- 52.8 kg/m (-21%)
- Depth
- 350.0 mm (+17%)
- Ix
- 113,000,000 mm⁴ (-0.9%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology