2L3×2-1/2×5/16LLBB 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.

2L3×2-1/2×5/16LLBB has a 3 in. long leg and a 2 1/2 in. short leg, 5/16 in. thick, in contact back to back.

It is a double angle set with its long legs back-to-back.

It weighs 11.2 lb per foot.

For strong-axis bending its section modulus is Sx = 1.36 in³ and its moment of inertia Ix = 2.82 in⁴, with a plastic modulus Zx = 2.46 in³.

Detailing dimensions

Long leg3"
Short leg2 1/2"
Thickness (t)5/16"

Section properties

Weight11.2 lb/ft
Area (A)3.26 in²
Ix2.82 in⁴
Sx1.36 in³
Zx2.46 in³
rx0.932 in
Iy3.26 in⁴
Sy1.3 in³
Zy2.21 in³
ry1 in

Similar weight double angles

Comparable 11.2 lb/ft sections in other double angle sizes.

2L3×2-1/2×5/16×3/8LLBB11.2 lb/ft · Sx 1.36 in³2L3×2-1/2×5/16×3/4LLBB11.2 lb/ft · Sx 1.36 in³2L3×2-1/2×5/16SLBB11.2 lb/ft · Sx 0.974 in³2L3×2-1/2×5/16×3/8SLBB11.2 lb/ft · Sx 0.974 in³2L3×2-1/2×5/16×3/4SLBB11.2 lb/ft · Sx 0.974 in³2L3-1/2×3×1/4LLBB10.8 lb/ft · Sx 1.55 in³2L3-1/2×3×1/4×3/8LLBB10.8 lb/ft · Sx 1.55 in³2L3-1/2×3×1/4×3/4LLBB10.8 lb/ft · Sx 1.55 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 2L3×2-1/2×5/16LLBB cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing