Steel Beam Sizes / UK / RHS / RHS 400×200×7.1

RHS 400×200×7.1 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 400×200×7.1 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 43.61 lb/ft 64.90 kg/m
Height 15.75 in 400.00 mm
Width 7.87 in 200.00 mm
t 0.280 in 7.100 mm
Area 12.80 in² 8,260.00 mm²
Ix 420.44 in⁴ 175,000,000 mm⁴
Iy 143.91 in⁴ 59,900,000 mm⁴
Sx 53.52 in³ 877,000.00 mm³
Sy 36.55 in³ 599,000.00 mm³
Zx 65.91 in³ 1,080,000 mm³
Zy 40.58 in³ 665,000.00 mm³
rx 5.75 in 146.00 mm
ry 3.35 in 85.10 mm
J 338.75 in⁴ 141,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 400×200×7.1.

Lighter in Rectangular hollow sections

RHS 250×150×11

Weight
64.3 kg/m (-0.9%)
Depth
250.0 mm (-37%)
Ix
66,700,000 mm⁴ (-62%)

Heavier in Rectangular hollow sections

RHS 260×180×10

Weight
65.1 kg/m (+0.3%)
Depth
260.0 mm (-35%)
Ix
77,400,000 mm⁴ (-56%)

Closest Iₓ in Rectangular hollow sections

RHS 300×200×16

Weight
115.0 kg/m (+77%)
Depth
300.0 mm (-25%)
Ix
174,000,000 mm⁴ (-0.6%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology