Steel Beam Sizes / AISC / Angles / L4x4x3/4

L4x4x3/4 Steel Beam Dimensions and Properties

AISC Angles · v16.0

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

Units

Section diagram

L4x4x3/4 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 18.50 lb/ft 27.50 kg/m
Width 4.00 in 102.00 mm
Height 4.00 in 102.00 mm
t 0.750 in 19.100 mm
Area 5.44 in² 3,510.00 mm²
Ix 7.62 in⁴ 3,170,000 mm⁴
Iy 7.62 in⁴ 3,170,000 mm⁴
Sx 2.79 in³ 45,700.00 mm³
Sy 2.79 in³ 45,700.00 mm³
Zx 5.02 in³ 82,300.00 mm³
Zy 5.02 in³ 82,300.00 mm³
rx 1.18 in 30.00 mm
ry 1.18 in 30.00 mm
J 1.02 in⁴ 425,000.00 mm⁴
Cw 1.12 in⁶ 301,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L4x4x3/4.

Lighter in L4

L4x4x5/8

Weight
15.7 lb/ft (-15%)
Depth
4.00 in (0.0%)
Ix
6.6 in⁴ (-13%)

Closest Iₓ in L4

L4x3x5/8

Weight
13.6 lb/ft (-26%)
Depth
3.00 in (-25%)
Ix
6.0 in⁴ (-21%)

Similar weight in L5

L5x3-1/2x3/4

Weight
19.8 lb/ft (+7.0%)
Depth
3.50 in (-13%)
Ix
13.9 in⁴ (+82%)
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Source: AISC Shapes Database v16.0 · Methodology