Steel Beam Sizes / AISC / HSS Rectangular / HSS 12x3x3/16

HSS 12x3x3/16 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 12x3x3/16 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 18.35 lb/ft 27.40 kg/m
Height 12.00 in 305.00 mm
Width 3.00 in 76.20 mm
Nominal tw 0.188 in 4.760 mm
Design tw 0.174 in 4.420 mm
Area 5.02 in² 3,240.00 mm²
Ix 79.60 in⁴ 33,100,000 mm⁴
Iy 8.72 in⁴ 3,630,000 mm⁴
Sx 13.30 in³ 218,000.00 mm³
Sy 5.81 in³ 95,200.00 mm³
Zx 17.50 in³ 287,000.00 mm³
Zy 6.40 in³ 105,000.00 mm³
rx 3.98 in 101.00 mm
ry 1.32 in 33.50 mm
J 26.80 in⁴ 11,200,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 12x3x3/16.

Lighter in Rectangular HSS

HSS 6x5x1/4

Weight
17.3 lb/ft (-5.6%)
Depth
6.00 in (-50%)
Ix
24.7 in⁴ (-69%)

Heavier in Rectangular HSS

HSS 10x2x1/4

Weight
19.0 lb/ft (+3.7%)
Depth
10.00 in (-17%)
Ix
52.5 in⁴ (-34%)

Closest Iₓ in Rectangular HSS

HSS 9x5x5/16

Weight
27.6 lb/ft (+50%)
Depth
9.00 in (-25%)
Ix
79.8 in⁴ (+0.3%)
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Source: AISC Shapes Database v16.0 · Methodology