Steel Beam Sizes / UK / SHS / SHS 300×300×8

SHS 300×300×8 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 300×300×8 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 48.92 lb/ft 72.80 kg/m
Height 11.81 in 300.00 mm
Width 11.81 in 300.00 mm
t 0.315 in 8.000 mm
Area 14.38 in² 9,280.00 mm²
Ix 314.73 in⁴ 131,000,000 mm⁴
Iy 314.73 in⁴ 131,000,000 mm⁴
Sx 53.40 in³ 875,000.00 mm³
Sy 53.40 in³ 875,000.00 mm³
Zx 61.63 in³ 1,010,000 mm³
Zy 61.63 in³ 1,010,000 mm³
rx 4.69 in 119.00 mm
ry 4.69 in 119.00 mm
J 485.31 in⁴ 202,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 300×300×8.

Lighter in Square hollow sections

SHS 200×200×12.5

Weight
72.3 kg/m (-0.7%)
Depth
200.0 mm (-33%)
Ix
53,400,000 mm⁴ (-59%)

Heavier in Square hollow sections

SHS 250×250×10

Weight
74.5 kg/m (+2.3%)
Depth
250.0 mm (-17%)
Ix
90,600,000 mm⁴ (-31%)

Closest Iₓ in Square hollow sections

SHS 250×250×16

Weight
115.0 kg/m (+58%)
Depth
250.0 mm (-17%)
Ix
133,000,000 mm⁴ (+1.5%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology