Steel Beam Sizes / UK / RHS / RHS 350×200×7.1

RHS 350×200×7.1 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 350×200×7.1 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 13.78 in 350.00 mm
Width 7.87 in 200.00 mm
t 0.280 in 7.100 mm
Area 11.70 in² 7,550.00 mm²
Ix 305.12 in⁴ 127,000,000 mm⁴
Iy 128.05 in⁴ 53,300,000 mm⁴
Sx 44.12 in³ 723,000.00 mm³
Sy 32.53 in³ 533,000.00 mm³
Zx 53.58 in³ 878,000.00 mm³
Zy 36.37 in³ 596,000.00 mm³
rx 5.08 in 129.00 mm
ry 3.31 in 84.00 mm
J 283.50 in⁴ 118,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 350×200×7.1.

Lighter in Rectangular hollow sections

RHS 200×100×14.2

Weight
58.9 kg/m (-0.7%)
Depth
200.0 mm (-43%)
Ix
34,200,000 mm⁴ (-73%)

Heavier in Rectangular hollow sections

RHS 300×200×8

Weight
60.3 kg/m (+1.7%)
Depth
300.0 mm (-14%)
Ix
97,200,000 mm⁴ (-23%)

Closest Iₓ in Rectangular hollow sections

RHS 300×200×11

Weight
81.5 kg/m (+37%)
Depth
300.0 mm (-14%)
Ix
128,000,000 mm⁴ (+0.8%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology