Steel Beam Sizes / UK / RHS / RHS 500×300×8
RHS 500×300×8 Steel Beam Dimensions and Properties
UK Rectangular hollow sections · v2023.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
RHS 500×300×8 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 | 19.69 in | 500.00 mm |
| Width | 11.81 in | 300.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 19.38 in² | 12,500.00 mm² |
| Ix | 1,049.90 in⁴ | 437,000,000 mm⁴ |
| Iy | 480.50 in⁴ | 200,000,000 mm⁴ |
| Sx | 106.79 in³ | 1,750,000 mm³ |
| Sy | 81.16 in³ | 1,330,000 mm³ |
| Zx | 128.15 in³ | 2,100,000 mm³ |
| Zy | 90.32 in³ | 1,480,000 mm³ |
| rx | 7.36 in | 187.00 mm |
| ry | 4.96 in | 126.00 mm |
| J | 1,023.47 in⁴ | 426,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 500×300×8.
Lighter in Rectangular hollow sections
RHS 400×300×8.8
- Weight
- 93.6 kg/m (-4.4%)
- Depth
- 400.0 mm (-20%)
- Ix
- 281,000,000 mm⁴ (-36%)
Heavier in Rectangular hollow sections
RHS 350×250×11
- Weight
- 98.8 kg/m (+0.9%)
- Depth
- 350.0 mm (-30%)
- Ix
- 219,000,000 mm⁴ (-50%)
Closest Iₓ in Rectangular hollow sections
RHS 400×300×14.2
- Weight
- 148.0 kg/m (+51%)
- Depth
- 400.0 mm (-20%)
- Ix
- 430,000,000 mm⁴ (-1.6%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology