Steel Beam Sizes / AISC / HSS Rectangular / HSS 3-1/2x2-1/2x5/16

HSS 3-1/2x2-1/2x5/16 Steel Beam Dimensions and Properties

AISC Rectangular HSS · v16.0

Analyze in Beam Calculator Back to HSS Rectangular

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

Units

Section diagram

HSS 3-1/2x2-1/2x5/16 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 10.58 lb/ft 15.60 kg/m
Height 3.50 in 88.90 mm
Width 2.50 in 63.50 mm
Nominal tw 0.313 in 7.940 mm
Design tw 0.291 in 7.390 mm
Area 2.94 in² 1,900.00 mm²
Ix 4.34 in⁴ 1,810,000 mm⁴
Iy 2.54 in⁴ 1,060,000 mm⁴
Sx 2.48 in³ 40,700.00 mm³
Sy 2.03 in³ 33,300.00 mm³
Zx 3.20 in³ 52,500.00 mm³
Zy 2.52 in³ 41,400.00 mm³
rx 1.22 in 30.90 mm
ry 0.93 in 23.60 mm
J 5.53 in⁴ 2,300,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 3-1/2x2-1/2x5/16.

Lighter in Rectangular HSS

HSS 4x3x1/4

Weight
10.5 lb/ft (-0.7%)
Depth
4.00 in (+14%)
Ix
6.2 in⁴ (+42%)

Heavier in Rectangular HSS

HSS 5x4x3/16

Weight
10.7 lb/ft (+1.1%)
Depth
5.00 in (+43%)
Ix
10.6 in⁴ (+144%)

Closest Iₓ in Rectangular HSS

HSS 4x2-1/2x3/16

Weight
7.5 lb/ft (-29%)
Depth
4.00 in (+14%)
Ix
4.3 in⁴ (-0.9%)
Analyze in Beam Calculator Compare in HSS Rectangular finder

Source: AISC Shapes Database v16.0 · Methodology