Steel Beam Sizes / CISC / HSS Square / HS305×305×9.5

HS305×305×9.5 Steel Beam Dimensions and Properties

CISC Square HSS · v12.1

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

HS305×305×9.5 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 58.10 lb/ft 86.50 kg/m
Height 12.00 in 304.80 mm
Width 12.00 in 304.80 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.375 in 9.530 mm
Area 17.05 in² 11,000.00 mm²
Ix 379.60 in⁴ 158,000,000 mm⁴
Iy 379.60 in⁴ 158,000,000 mm⁴
Sx 63.46 in³ 1,040,000 mm³
Sy 63.46 in³ 1,040,000 mm³
Zx 73.84 in³ 1,210,000 mm³
Zy 73.84 in³ 1,210,000 mm³
rx 4.72 in 120.00 mm
ry 4.72 in 120.00 mm
J 600.63 in⁴ 250,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HS305×305×9.5.

Lighter in Square HSS

HA356×356×7.9

Weight
85.4 kg/m (-1.0%)
Depth
355.6 mm (+17%)
Ix
198,000,000 mm⁴ (+25%)

Heavier in Square HSS

HA203×203×16

Weight
88.3 kg/m (+2.1%)
Depth
203.2 mm (-33%)
Ix
59,500,000 mm⁴ (-62%)

Closest Iₓ in Square HSS

HA305×305×9.5

Weight
86.5 kg/m (0.0%)
Depth
304.8 mm (0.0%)
Ix
144,000,000 mm⁴ (-8.9%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Methodology