Steel Beam Sizes / UK / RHS / RHS 400×150×8.8

RHS 400×150×8.8 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 400×150×8.8 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 48.99 lb/ft 72.90 kg/m
Height 15.75 in 400.00 mm
Width 5.91 in 150.00 mm
t 0.346 in 8.800 mm
Area 14.40 in² 9,290.00 mm²
Ix 432.45 in⁴ 180,000,000 mm⁴
Iy 91.30 in⁴ 38,000,000 mm⁴
Sx 54.80 in³ 898,000.00 mm³
Sy 30.94 in³ 507,000.00 mm³
Zx 69.57 in³ 1,140,000 mm³
Zy 34.66 in³ 568,000.00 mm³
rx 5.47 in 139.00 mm
ry 2.52 in 64.00 mm
J 247.46 in⁴ 103,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 400×150×8.8.

Lighter in Rectangular hollow sections

RHS 350×250×8

Weight
72.8 kg/m (-0.1%)
Depth
350.0 mm (-12%)
Ix
164,000,000 mm⁴ (-8.9%)

Heavier in Rectangular hollow sections

RHS 300×200×10

Weight
74.5 kg/m (+2.2%)
Depth
300.0 mm (-25%)
Ix
118,000,000 mm⁴ (-34%)

Closest Iₓ in Rectangular hollow sections

RHS 350×250×8.8

Weight
79.8 kg/m (+9.5%)
Depth
350.0 mm (-12%)
Ix
179,000,000 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