Steel Beam Sizes / AISC / HSS Square / HSS 5-1/2x5-1/2x1/8

HSS 5-1/2x5-1/2x1/8 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 5-1/2x5-1/2x1/8 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 9.01 lb/ft 13.40 kg/m
Height 5.50 in 140.00 mm
Width 5.50 in 140.00 mm
Nominal tw 0.125 in 3.180 mm
Design tw 0.116 in 2.950 mm
Area 2.46 in² 1,590.00 mm²
Ix 11.80 in⁴ 4,910,000 mm⁴
Iy 11.80 in⁴ 4,910,000 mm⁴
Sx 4.30 in³ 70,500.00 mm³
Sy 4.30 in³ 70,500.00 mm³
Zx 4.95 in³ 81,100.00 mm³
Zy 4.95 in³ 81,100.00 mm³
rx 2.19 in 55.60 mm
ry 2.19 in 55.60 mm
J 18.30 in⁴ 7,620,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 5-1/2x5-1/2x1/8.

Lighter in Square HSS

HSS 3x3x1/4

Weight
8.8 lb/ft (-2.2%)
Depth
3.00 in (-45%)
Ix
3.0 in⁴ (-74%)

Heavier in Square HSS

HSS 4x4x3/16

Weight
9.4 lb/ft (+4.6%)
Depth
4.00 in (-27%)
Ix
6.2 in⁴ (-47%)

Closest Iₓ in Square HSS

HSS 4x4x1/2

Weight
21.6 lb/ft (+140%)
Depth
4.00 in (-27%)
Ix
11.9 in⁴ (+0.8%)
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Source: AISC Shapes Database v16.0 · Methodology