Steel Beam Sizes / AISC / HSS Square / HSS 5-1/2x5-1/2x5/16

HSS 5-1/2x5-1/2x5/16 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 5-1/2x5-1/2x5/16 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 21.21 lb/ft 31.50 kg/m
Height 5.50 in 140.00 mm
Width 5.50 in 140.00 mm
Nominal tw 0.313 in 7.940 mm
Design tw 0.291 in 7.390 mm
Area 5.85 in² 3,770.00 mm²
Ix 25.90 in⁴ 10,800,000 mm⁴
Iy 25.90 in⁴ 10,800,000 mm⁴
Sx 9.43 in³ 155,000.00 mm³
Sy 9.43 in³ 155,000.00 mm³
Zx 11.30 in³ 185,000.00 mm³
Zy 11.30 in³ 185,000.00 mm³
rx 2.11 in 53.60 mm
ry 2.11 in 53.60 mm
J 42.20 in⁴ 17,600,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 5-1/2x5-1/2x5/16.

Lighter in Square HSS

HSS 4-1/2x4-1/2x3/8

Weight
19.8 lb/ft (-6.6%)
Depth
4.50 in (-18%)
Ix
15.3 in⁴ (-41%)

Heavier in Square HSS

HSS 4x4x1/2

Weight
21.6 lb/ft (+2.0%)
Depth
4.00 in (-27%)
Ix
11.9 in⁴ (-54%)

Closest Iₓ in Square HSS

HSS 5x5x1/2

Weight
28.4 lb/ft (+34%)
Depth
5.00 in (-9.1%)
Ix
26.0 in⁴ (+0.4%)
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Source: AISC Shapes Database v16.0 · Methodology