2L4×4×1/2×3/8 double angle

Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.

2L4×4×1/2×3/8 has equal 4 in. legs, 1/2 in. thick, spaced 3/8 in. back to back.

At 25.6 lb per foot it is one of the 21 2L4×4 sizes, which run from 13.2 to 37 lb/ft.

For strong-axis bending its section modulus is Sx = 3.92 in³ and its moment of inertia Ix = 11 in⁴, with a plastic modulus Zx = 7 in³.

Detailing dimensions

Long leg4"
Short leg4"
Thickness (t)1/2"

Section properties

Weight25.6 lb/ft
Area (A)7.5 in²
Ix11 in⁴
Sx3.92 in³
Zx7 in³
rx1.21 in
Iy25.1 in⁴
Sy5.99 in³
Zy10.3 in³
ry1.83 in

Other 2L4×4 sizes

Same nominal size, different weight — useful when you are checking a substitution or a lighter section.

2L4×4×1/42L4×4×1/4×3/82L4×4×1/4×3/42L4×4×5/162L4×4×5/16×3/82L4×4×5/16×3/42L4×4×3/82L4×4×3/8×3/82L4×4×3/8×3/42L4×4×7/162L4×4×7/16×3/82L4×4×7/16×3/42L4×4×1/22L4×4×1/2×3/42L4×4×5/82L4×4×5/8×3/82L4×4×5/8×3/42L4×4×3/42L4×4×3/4×3/82L4×4×3/4×3/4

All 2L4×4 sizes and dimensions →

Similar weight double angles

Comparable 25.6 lb/ft sections in other double angle sizes.

2L5×3×1/2LLBB25.6 lb/ft · Sx 5.78 in³2L5×3×1/2×3/8LLBB25.6 lb/ft · Sx 5.78 in³2L5×3×1/2×3/4LLBB25.6 lb/ft · Sx 5.78 in³2L5×3×1/2SLBB25.6 lb/ft · Sx 2.26 in³2L5×3×1/2×3/8SLBB25.6 lb/ft · Sx 2.26 in³2L5×3×1/2×3/4SLBB25.6 lb/ft · Sx 2.26 in³2L6×6×5/1624.8 lb/ft · Sx 5.9 in³2L6×6×5/16×3/824.8 lb/ft · Sx 5.9 in³

Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need 2L4×4×1/2×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing