Steel Beam Sizes / Europe / SHS / SHS 300×300×6.3

SHS 300×300×6.3 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 300×300×6.3 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 38.84 lb/ft 57.80 kg/m
Height 11.81 in 300.00 mm
Width 11.81 in 300.00 mm
t 0.248 in 6.300 mm
Area 11.41 in² 7,360.00 mm²
Ix 252.26 in⁴ 105,000,000 mm⁴
Iy 252.26 in⁴ 105,000,000 mm⁴
Sx 42.90 in³ 703,000.00 mm³
Sy 42.90 in³ 703,000.00 mm³
Zx 49.37 in³ 809,000.00 mm³
Zy 49.37 in³ 809,000.00 mm³
rx 4.72 in 120.00 mm
ry 4.72 in 120.00 mm
J 386.80 in⁴ 161,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus SHS 300×300×6.3.

Lighter in Square hollow sections

SHS 220×220×8.8

Weight
57.7 kg/m (-0.2%)
Depth
220.0 mm (-27%)
Ix
54,300,000 mm⁴ (-48%)

Heavier in Square hollow sections

SHS 200×200×10

Weight
58.8 kg/m (+1.7%)
Depth
200.0 mm (-33%)
Ix
44,700,000 mm⁴ (-57%)

Closest Iₓ in Square hollow sections

SHS 260×260×10

Weight
77.7 kg/m (+34%)
Depth
260.0 mm (-13%)
Ix
102,000,000 mm⁴ (-2.9%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology