Steel Beam Sizes / UK / SHS / SHS 300×300×7.1

SHS 300×300×7.1 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 300×300×7.1 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 43.61 lb/ft 64.90 kg/m
Height 11.81 in 300.00 mm
Width 11.81 in 300.00 mm
t 0.280 in 7.100 mm
Area 12.80 in² 8,260.00 mm²
Ix 283.50 in⁴ 118,000,000 mm⁴
Iy 283.50 in⁴ 118,000,000 mm⁴
Sx 47.90 in³ 785,000.00 mm³
Sy 47.90 in³ 785,000.00 mm³
Zx 55.29 in³ 906,000.00 mm³
Zy 55.29 in³ 906,000.00 mm³
rx 4.69 in 119.00 mm
ry 4.69 in 119.00 mm
J 434.85 in⁴ 181,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 300×300×7.1.

Lighter in Square hollow sections

SHS 180×180×12.5

Weight
64.4 kg/m (-0.8%)
Depth
180.0 mm (-40%)
Ix
37,900,000 mm⁴ (-68%)

Heavier in Square hollow sections

SHS 220×220×10

Weight
65.1 kg/m (+0.3%)
Depth
220.0 mm (-27%)
Ix
60,500,000 mm⁴ (-49%)

Closest Iₓ in Square hollow sections

SHS 250×250×14.2

Weight
103.0 kg/m (+59%)
Depth
250.0 mm (-17%)
Ix
121,000,000 mm⁴ (+2.5%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology