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SHS 40×40×3 Steel Beam Dimensions and Properties

EN Square hollow sections · v2026.1

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

Units

Section diagram

SHS 40×40×3 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 2.29 lb/ft 3.41 kg/m
Height 1.57 in 40.00 mm
Width 1.57 in 40.00 mm
t 0.118 in 3.000 mm
Area 0.67 in² 434.00 mm²
Ix 0.23 in⁴ 97,800.00 mm⁴
Iy 0.23 in⁴ 97,800.00 mm⁴
Sx 0.30 in³ 4,890.00 mm³
Sy 0.30 in³ 4,890.00 mm³
Zx 0.36 in³ 5,970.00 mm³
Zy 0.36 in³ 5,970.00 mm³
rx 0.59 in 15.00 mm
ry 0.59 in 15.00 mm
J 0.38 in⁴ 157,000.00 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 40×40×3.

Lighter in Square hollow sections

SHS 40×40×2.9

Weight
3.3 kg/m (-2.9%)
Depth
40.0 mm (0.0%)
Ix
95,400 mm⁴ (-2.5%)

Heavier in Square hollow sections

SHS 40×40×3.2

Weight
3.6 kg/m (+5.9%)
Depth
40.0 mm (0.0%)
Ix
102,000 mm⁴ (+4.3%)

Closest Iₓ in Square hollow sections

SHS 40×40×3.6

Weight
4.0 kg/m (+18%)
Depth
40.0 mm (0.0%)
Ix
111,000 mm⁴ (+13%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology