2L2-1/2×1-1/2×1/4SLBB 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.

2L2-1/2×1-1/2×1/4SLBB has a 2 1/2 in. long leg and a 1 1/2 in. short leg, 1/4 in. thick, in contact back to back.

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

It weighs 6.38 lb per foot.

For strong-axis bending its section modulus is Sx = 0.28 in³ and its moment of inertia Ix = 0.316 in⁴, with a plastic modulus Zx = 0.522 in³.

Detailing dimensions

Long leg2 1/2"
Short leg1 1/2"
Thickness (t)1/4"

Section properties

Weight6.38 lb/ft
Area (A)1.89 in²
Ix0.316 in⁴
Sx0.28 in³
Zx0.522 in³
rx0.409 in
Iy2.59 in⁴
Sy1.04 in³
Zy1.64 in³
ry1.17 in

Similar weight double angles

Comparable 6.38 lb/ft sections in other double angle sizes.

2L2×2×1/46.38 lb/ft · Sx 0.488 in³2L2×2×1/4×3/86.38 lb/ft · Sx 0.488 in³2L2×2×1/4×3/46.38 lb/ft · Sx 0.488 in³2L2-1/2×1-1/2×1/4LLBB6.38 lb/ft · Sx 0.728 in³2L2-1/2×1-1/2×1/4×3/8LLBB6.38 lb/ft · Sx 0.728 in³2L2-1/2×1-1/2×1/4×3/4LLBB6.38 lb/ft · Sx 0.728 in³2L2-1/2×1-1/2×1/4×3/8SLBB6.38 lb/ft · Sx 0.28 in³2L2-1/2×1-1/2×1/4×3/4SLBB6.38 lb/ft · Sx 0.28 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 2L2-1/2×1-1/2×1/4SLBB cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing