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RHS 160×80×4 Steel Beam Dimensions and Properties

EN Rectangular hollow sections · v2026.1

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

Units

Section diagram

RHS 160×80×4 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 9.68 lb/ft 14.40 kg/m
Height 6.30 in 160.00 mm
Width 3.15 in 80.00 mm
t 0.157 in 4.000 mm
Area 2.85 in² 1,840.00 mm²
Ix 14.70 in⁴ 6,120,000 mm⁴
Iy 4.97 in⁴ 2,070,000 mm⁴
Sx 4.67 in³ 76,500.00 mm³
Sy 3.15 in³ 51,700.00 mm³
Zx 5.78 in³ 94,700.00 mm³
Zy 3.56 in³ 58,300.00 mm³
rx 2.27 in 57.70 mm
ry 1.32 in 33.50 mm
J 11.84 in⁴ 4,930,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 160×80×4.

Lighter in Rectangular hollow sections

RHS 100×60×6.3

Weight
14.2 kg/m (-1.4%)
Depth
100.0 mm (-38%)
Ix
2,250,000 mm⁴ (-63%)

Heavier in Rectangular hollow sections

RHS 120×60×5.6

Weight
14.6 kg/m (+1.4%)
Depth
120.0 mm (-25%)
Ix
3,270,000 mm⁴ (-47%)

Closest Iₓ in Rectangular hollow sections

RHS 120×80×10

Weight
27.4 kg/m (+90%)
Depth
120.0 mm (-25%)
Ix
6,090,000 mm⁴ (-0.5%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology