Steel Beam Sizes / CISC / HSS Square / HS178×178×16

HS178×178×16 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

HS178×178×16 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 50.80 lb/ft 75.60 kg/m
Height 7.00 in 177.80 mm
Width 7.00 in 177.80 mm
Nominal tw 0.625 in 15.880 mm
Design tw 0.625 in 15.880 mm
Area 14.94 in² 9,640.00 mm²
Ix 97.54 in⁴ 40,600,000 mm⁴
Iy 97.54 in⁴ 40,600,000 mm⁴
Sx 27.89 in³ 457,000.00 mm³
Sy 27.89 in³ 457,000.00 mm³
Zx 34.84 in³ 571,000.00 mm³
Zy 34.84 in³ 571,000.00 mm³
rx 2.56 in 64.90 mm
ry 2.56 in 64.90 mm
J 166.49 in⁴ 69,300,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HS178×178×16.

Lighter in Square HSS

HA203×203×13

Weight
72.7 kg/m (-3.7%)
Depth
203.2 mm (+14%)
Ix
50,600,000 mm⁴ (+25%)

Heavier in Square HSS

HA356×356×7.9

Weight
85.4 kg/m (+13%)
Depth
355.6 mm (+100%)
Ix
198,000,000 mm⁴ (+388%)

Closest Iₓ in Square HSS

HA203×203×9.5

Weight
56.1 kg/m (-26%)
Depth
203.2 mm (+14%)
Ix
40,400,000 mm⁴ (-0.5%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Methodology