Steel Beam Sizes / UK / RHS / RHS 300×250×7.1

RHS 300×250×7.1 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 300×250×7.1 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 39.85 lb/ft 59.30 kg/m
Height 11.81 in 300.00 mm
Width 9.84 in 250.00 mm
t 0.280 in 7.100 mm
Area 11.70 in² 7,550.00 mm²
Ix 247.46 in⁴ 103,000,000 mm⁴
Iy 186.19 in⁴ 77,500,000 mm⁴
Sx 41.68 in³ 683,000.00 mm³
Sy 37.83 in³ 620,000.00 mm³
Zx 48.94 in³ 802,000.00 mm³
Zy 43.20 in³ 708,000.00 mm³
rx 4.57 in 116.00 mm
ry 3.98 in 101.00 mm
J 326.74 in⁴ 136,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 300×250×7.1.

Lighter in Rectangular hollow sections

RHS 200×100×14.2

Weight
58.9 kg/m (-0.7%)
Depth
200.0 mm (-33%)
Ix
34,200,000 mm⁴ (-67%)

Heavier in Rectangular hollow sections

RHS 300×200×8

Weight
60.3 kg/m (+1.7%)
Depth
300.0 mm (0.0%)
Ix
97,200,000 mm⁴ (-5.6%)

Closest Iₓ in Rectangular hollow sections

RHS 260×180×14.2

Weight
90.1 kg/m (+52%)
Depth
260.0 mm (-13%)
Ix
103,000,000 mm⁴ (0.0%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology