Steel Beam Sizes / UK / SHS / SHS 80×80×4

SHS 80×80×4 Steel Beam Dimensions and Properties

UK Square hollow sections · v2023.11

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

Units

Section diagram

SHS 80×80×4 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 6.32 lb/ft 9.41 kg/m
Height 3.15 in 80.00 mm
Width 3.15 in 80.00 mm
t 0.157 in 4.000 mm
Area 1.86 in² 1,200.00 mm²
Ix 2.74 in⁴ 1,140,000 mm⁴
Iy 2.74 in⁴ 1,140,000 mm⁴
Sx 1.75 in³ 28,600.00 mm³
Sy 1.75 in³ 28,600.00 mm³
Zx 2.07 in³ 34,000.00 mm³
Zy 2.07 in³ 34,000.00 mm³
rx 1.22 in 30.90 mm
ry 1.22 in 30.90 mm
J 4.32 in⁴ 1,800,000 mm⁴

Alternatives

Useful nearby sections

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

Lighter in Square hollow sections

SHS 60×60×5.6

Weight
9.3 kg/m (-1.2%)
Depth
60.0 mm (-25%)
Ix
574,000 mm⁴ (-50%)

Heavier in Square hollow sections

SHS 90×90×3.6

Weight
9.7 kg/m (+2.7%)
Depth
90.0 mm (+13%)
Ix
1,520,000 mm⁴ (+33%)

Closest Iₓ in Square hollow sections

SHS 70×70×7.1

Weight
13.6 kg/m (+45%)
Depth
70.0 mm (-12%)
Ix
1,120,000 mm⁴ (-1.8%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology