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SHS 400×400×11 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 400×400×11 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 89.37 lb/ft 133.00 kg/m
Height 15.75 in 400.00 mm
Width 15.75 in 400.00 mm
t 0.433 in 11.000 mm
Area 26.35 in² 17,000.00 mm²
Ix 1,025.87 in⁴ 427,000,000 mm⁴
Iy 1,025.87 in⁴ 427,000,000 mm⁴
Sx 129.98 in³ 2,130,000 mm³
Sy 129.98 in³ 2,130,000 mm³
Zx 150.73 in³ 2,470,000 mm³
Zy 150.73 in³ 2,470,000 mm³
rx 6.22 in 158.00 mm
ry 6.22 in 158.00 mm
J 1,578.45 in⁴ 657,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 400×400×11.

Lighter in Square hollow sections

SHS 350×350×12.5

Weight
131.0 kg/m (-1.5%)
Depth
350.0 mm (-12%)
Ix
315,000,000 mm⁴ (-26%)

Heavier in Square hollow sections

SHS 300×300×16

Weight
141.0 kg/m (+6.0%)
Depth
300.0 mm (-25%)
Ix
238,000,000 mm⁴ (-44%)

Closest Iₓ in Square hollow sections

SHS 400×400×10

Weight
122.0 kg/m (-8.3%)
Depth
400.0 mm (0.0%)
Ix
391,000,000 mm⁴ (-8.4%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology