Steel Beam Sizes / AISC / HSS Rectangular / HSS 20x12x5/8

HSS 20x12x5/8 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 20x12x5/8 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 127.37 lb/ft 189.00 kg/m
Height 20.00 in 508.00 mm
Width 12.00 in 305.00 mm
Nominal tw 0.625 in 15.900 mm
Design tw 0.581 in 14.800 mm
Area 35.00 in² 22,600.00 mm²
Ix 1,880.00 in⁴ 783,000,000 mm⁴
Iy 851.00 in⁴ 354,000,000 mm⁴
Sx 188.00 in³ 3,080,000 mm³
Sy 142.00 in³ 2,330,000 mm³
Zx 230.00 in³ 3,770,000 mm³
Zy 162.00 in³ 2,650,000 mm³
rx 7.33 in 186.00 mm
ry 4.93 in 125.00 mm
J 1,890.00 in⁴ 787,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 20x12x5/8.

Lighter in Rectangular HSS

HSS 14x10x7/8

Weight
125.8 lb/ft (-1.2%)
Depth
14.00 in (-30%)
Ix
886.0 in⁴ (-53%)

Heavier in Rectangular HSS

HSS 16x12x3/4

Weight
130.3 lb/ft (+2.3%)
Depth
16.00 in (-20%)
Ix
1,270.0 in⁴ (-32%)

Closest Iₓ in Rectangular HSS

HSS 20x8x7/8

Weight
149.6 lb/ft (+17%)
Depth
20.00 in (0.0%)
Ix
1,880.0 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology