Steel Beam Sizes / UK / RHS / RHS 300×250×8

RHS 300×250×8 Steel Beam Dimensions and Properties

UK Rectangular hollow sections · v2023.11

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

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%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology