Steel Beam Sizes / AISC / HSS Rectangular / HSS 20x12x1

HSS 20x12x1 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 20x12x1 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 195.40 lb/ft 291.00 kg/m
Height 20.00 in 508.00 mm
Width 12.00 in 305.00 mm
Nominal tw 1.000 in 25.400 mm
Design tw 0.930 in 23.600 mm
Area 53.80 in² 34,700.00 mm²
Ix 2,740.00 in⁴ 1,140,000,000 mm⁴
Iy 1,230.00 in⁴ 512,000,000 mm⁴
Sx 274.00 in³ 4,490,000 mm³
Sy 205.00 in³ 3,360,000 mm³
Zx 344.00 in³ 5,640,000 mm³
Zy 241.00 in³ 3,950,000 mm³
rx 7.14 in 181.00 mm
ry 4.78 in 121.00 mm
J 2,820.00 in⁴ 1,170,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 20x12x1.

Lighter in Rectangular HSS

HSS 22x18x3/4

Weight
191.6 lb/ft (-2.0%)
Depth
22.00 in (+10%)
Ix
3,720.0 in⁴ (+36%)

Heavier in Rectangular HSS

HSS 24x12x7/8

Weight
197.2 lb/ft (+0.9%)
Depth
24.00 in (+20%)
Ix
3,910.0 in⁴ (+43%)

Closest Iₓ in Rectangular HSS

HSS 20x16x3/4

Weight
171.2 lb/ft (-12%)
Depth
20.00 in (0.0%)
Ix
2,710.0 in⁴ (-1.1%)
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Source: AISC Shapes Database v16.0 · Methodology