2L3-1/2×3-1/2×1/4×3/8 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.

2L3-1/2×3-1/2×1/4×3/8 has equal 3 1/2 in. legs, 1/4 in. thick, in contact back to back.

It weighs 11.6 lb per foot.

For strong-axis bending its section modulus is Sx = 1.57 in³ and its moment of inertia Ix = 4 in⁴, with a plastic modulus Zx = 2.82 in³.

Detailing dimensions

Long leg3 1/2"
Short leg3 1/2"
Thickness (t)1/4"

Section properties

Weight11.6 lb/ft
Area (A)3.4 in²
Ix4 in⁴
Sx1.57 in³
Zx2.82 in³
rx1.09 in
Iy8.38 in⁴
Sy2.27 in³
Zy3.88 in³
ry1.57 in

Similar weight double angles

Comparable 11.6 lb/ft sections in other double angle sizes.

2L3-1/2×3-1/2×1/411.6 lb/ft · Sx 1.57 in³2L3-1/2×3-1/2×1/4×3/411.6 lb/ft · Sx 1.57 in³2L4×3×1/4LLBB11.6 lb/ft · Sx 1.98 in³2L4×3×1/4×3/8LLBB11.6 lb/ft · Sx 1.98 in³2L4×3×1/4×3/4LLBB11.6 lb/ft · Sx 1.98 in³2L4×3×1/4SLBB11.6 lb/ft · Sx 1.17 in³2L4×3×1/4×3/8SLBB11.6 lb/ft · Sx 1.17 in³2L4×3×1/4×3/4SLBB11.6 lb/ft · Sx 1.17 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 2L3-1/2×3-1/2×1/4×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing