Steel Beam Sizes / UK / SHS / SHS 300×300×11

SHS 300×300×11 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 300×300×11 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 66.39 lb/ft 98.80 kg/m
Height 11.81 in 300.00 mm
Width 11.81 in 300.00 mm
t 0.433 in 11.000 mm
Area 19.53 in² 12,600.00 mm²
Ix 418.04 in⁴ 174,000,000 mm⁴
Iy 418.04 in⁴ 174,000,000 mm⁴
Sx 70.79 in³ 1,160,000 mm³
Sy 70.79 in³ 1,160,000 mm³
Zx 82.99 in³ 1,360,000 mm³
Zy 82.99 in³ 1,360,000 mm³
rx 4.65 in 118.00 mm
ry 4.65 in 118.00 mm
J 648.68 in⁴ 270,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 300×300×11.

Lighter in Square hollow sections

SHS 400×400×8

Weight
97.9 kg/m (-0.9%)
Depth
400.0 mm (+33%)
Ix
319,000,000 mm⁴ (+83%)

Heavier in Square hollow sections

SHS 220×220×16

Weight
100.0 kg/m (+1.2%)
Depth
220.0 mm (-27%)
Ix
87,500,000 mm⁴ (-50%)

Closest Iₓ in Square hollow sections

SHS 300×300×10

Weight
90.2 kg/m (-8.7%)
Depth
300.0 mm (0.0%)
Ix
160,000,000 mm⁴ (-8.0%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology