Steel Beam Sizes / UK / SHS / SHS 70×70×8

SHS 70×70×8 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 70×70×8 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 10.08 lb/ft 15.00 kg/m
Height 2.76 in 70.00 mm
Width 2.76 in 70.00 mm
t 0.315 in 8.000 mm
Area 2.98 in² 1,920.00 mm²
Ix 2.88 in⁴ 1,200,000 mm⁴
Iy 2.88 in⁴ 1,200,000 mm⁴
Sx 2.09 in³ 34,200.00 mm³
Sy 2.09 in³ 34,200.00 mm³
Zx 2.67 in³ 43,800.00 mm³
Zy 2.67 in³ 43,800.00 mm³
rx 0.98 in 25.00 mm
ry 0.98 in 25.00 mm
J 4.81 in⁴ 2,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 70×70×8.

Lighter in Square hollow sections

SHS 100×100×5

Weight
14.7 kg/m (-2.0%)
Depth
100.0 mm (+43%)
Ix
2,790,000 mm⁴ (+132%)

Heavier in Square hollow sections

SHS 80×80×7.1

Weight
15.8 kg/m (+5.3%)
Depth
80.0 mm (+14%)
Ix
1,760,000 mm⁴ (+47%)

Closest Iₓ in Square hollow sections

SHS 70×70×8.8

Weight
16.3 kg/m (+8.7%)
Depth
70.0 mm (0.0%)
Ix
1,260,000 mm⁴ (+5.0%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology