Steel Beam Sizes / AISC / HSS Rectangular / HSS 20x16x3/4

HSS 20x16x3/4 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 20x16x3/4 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 171.16 lb/ft 255.00 kg/m
Height 20.00 in 508.00 mm
Width 16.00 in 406.00 mm
Nominal tw 0.750 in 19.100 mm
Design tw 0.698 in 17.700 mm
Area 47.10 in² 30,400.00 mm²
Ix 2,710.00 in⁴ 1,130,000,000 mm⁴
Iy 1,920.00 in⁴ 799,000,000 mm⁴
Sx 271.00 in³ 4,440,000 mm³
Sy 240.00 in³ 3,930,000 mm³
Zx 324.00 in³ 5,310,000 mm³
Zy 278.00 in³ 4,560,000 mm³
rx 7.59 in 193.00 mm
ry 6.39 in 162.00 mm
J 3,590.00 in⁴ 1,490,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 20x16x3/4.

Lighter in Rectangular HSS

HSS 22x20x5/8

Weight
169.9 lb/ft (-0.7%)
Depth
22.00 in (+10%)
Ix
3,440.0 in⁴ (+27%)

Heavier in Rectangular HSS

HSS 20x12x7/8

Weight
173.4 lb/ft (+1.3%)
Depth
20.00 in (0.0%)
Ix
2,480.0 in⁴ (-8.5%)

Closest Iₓ in Rectangular HSS

HSS 20x12x1

Weight
195.4 lb/ft (+14%)
Depth
20.00 in (0.0%)
Ix
2,740.0 in⁴ (+1.1%)
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Source: AISC Shapes Database v16.0 · Methodology