2L4×4×7/16×3/8 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.

2L4×4×7/16×3/8 has equal 4 in. legs, 7/16 in. thick, spaced 3/8 in. back to back.

At 22.6 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 = 3.46 in³ and its moment of inertia Ix = 9.86 in⁴, with a plastic modulus Zx = 6.2 in³.

Detailing dimensions

Long leg4"
Short leg4"
Thickness (t)7/16"

Section properties

Weight22.6 lb/ft
Area (A)6.6 in²
Ix9.86 in⁴
Sx3.46 in³
Zx6.2 in³
rx1.22 in
Iy21.6 in⁴
Sy5.16 in³
Zy8.83 in³
ry1.81 in

Other 2L4×4 sizes

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

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

All 2L4×4 sizes and dimensions →

Similar weight double angles

Comparable 22.6 lb/ft sections in other double angle sizes.

2L5×3×7/16LLBB22.6 lb/ft · Sx 5.12 in³2L5×3×7/16×3/8LLBB22.6 lb/ft · Sx 5.12 in³2L5×3×7/16×3/4LLBB22.6 lb/ft · Sx 5.12 in³2L5×3×7/16SLBB22.6 lb/ft · Sx 2.01 in³2L5×3×7/16×3/8SLBB22.6 lb/ft · Sx 2.01 in³2L5×3×7/16×3/4SLBB22.6 lb/ft · Sx 2.01 in³2L3-1/2×3-1/2×1/222.2 lb/ft · Sx 2.96 in³2L3-1/2×3-1/2×1/2×3/822.2 lb/ft · Sx 2.96 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 2L4×4×7/16×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing