Steel Beam Sizes / AISC / HSS Rectangular / HSS 12x3x1/4

HSS 12x3x1/4 Steel Beam Dimensions and Properties

AISC Rectangular HSS · v16.0

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

Units

Section diagram

HSS 12x3x1/4 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 24.12 lb/ft 35.80 kg/m
Height 12.00 in 305.00 mm
Width 3.00 in 76.20 mm
Nominal tw 0.250 in 6.350 mm
Design tw 0.233 in 5.920 mm
Area 6.63 in² 4,280.00 mm²
Ix 103.00 in⁴ 42,900,000 mm⁴
Iy 11.10 in⁴ 4,620,000 mm⁴
Sx 17.20 in³ 282,000.00 mm³
Sy 7.38 in³ 121,000.00 mm³
Zx 22.90 in³ 375,000.00 mm³
Zy 8.28 in³ 136,000.00 mm³
rx 3.94 in 100.00 mm
ry 1.29 in 32.80 mm
J 34.50 in⁴ 14,400,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 12x3x1/4.

Lighter in Rectangular HSS

HSS 10x2x5/16

Weight
23.3 lb/ft (-3.2%)
Depth
10.00 in (-17%)
Ix
62.6 in⁴ (-39%)

Heavier in Rectangular HSS

HSS 12x8x3/16

Weight
24.7 lb/ft (+2.5%)
Depth
12.00 in (0.0%)
Ix
140.0 in⁴ (+36%)

Closest Iₓ in Rectangular HSS

HSS 10x4x3/8

Weight
32.6 lb/ft (+35%)
Depth
10.00 in (-17%)
Ix
104.0 in⁴ (+1.0%)
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Source: AISC Shapes Database v16.0 · Methodology