Steel Beam Sizes / AISC / HSS Square / HSS 7x7x1/8

HSS 7x7x1/8 Steel Beam Dimensions and Properties

AISC Square HSS · v16.0

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

Units

Section diagram

HSS 7x7x1/8 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 11.56 lb/ft 17.20 kg/m
Height 7.00 in 178.00 mm
Width 7.00 in 178.00 mm
Nominal tw 0.125 in 3.180 mm
Design tw 0.116 in 2.950 mm
Area 3.16 in² 2,040.00 mm²
Ix 24.80 in⁴ 10,300,000 mm⁴
Iy 24.80 in⁴ 10,300,000 mm⁴
Sx 7.09 in³ 116,000.00 mm³
Sy 7.09 in³ 116,000.00 mm³
Zx 8.13 in³ 133,000.00 mm³
Zy 8.13 in³ 133,000.00 mm³
rx 2.80 in 71.10 mm
ry 2.80 in 71.10 mm
J 38.20 in⁴ 15,900,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 7x7x1/8.

Lighter in Square HSS

HSS 4-1/2x4-1/2x3/16

Weight
10.7 lb/ft (-7.4%)
Depth
4.50 in (-36%)
Ix
9.0 in⁴ (-64%)

Heavier in Square HSS

HSS 5x5x3/16

Weight
12.0 lb/ft (+3.5%)
Depth
5.00 in (-29%)
Ix
12.6 in⁴ (-49%)

Closest Iₓ in Square HSS

HSS 5-1/2x5-1/2x5/16

Weight
21.2 lb/ft (+83%)
Depth
5.50 in (-21%)
Ix
25.9 in⁴ (+4.4%)
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Source: AISC Shapes Database v16.0 · Methodology