2L12×12×1×3/4 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.

2L12×12×1×3/4 has equal 12 in. legs, 1 in. thick, spaced 3/4 in. back to back.

At 156 lb per foot it is one of the 12 2L12×12 sizes, which run from 156 to 210 lb/ft.

For strong-axis bending its section modulus is Sx = 73 in³ and its moment of inertia Ix = 630 in⁴, with a plastic modulus Zx = 132 in³.

Detailing dimensions

Long leg12"
Short leg12"
Thickness (t)1"

Section properties

Weight156 lb/ft
Area (A)46 in²
Ix630 in⁴
Sx73 in³
Zx132 in³
rx3.7 in
Iy1270 in⁴
Sy103 in³
Zy172 in³
ry5.25 in

Other 2L12×12 sizes

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

2L12×12×12L12×12×1×1-1/22L12×12×1-1/82L12×12×1-1/8×3/42L12×12×1-1/8×1-1/22L12×12×1-1/42L12×12×1-1/4×3/42L12×12×1-1/4×1-1/22L12×12×1-3/82L12×12×1-3/8×3/42L12×12×1-3/8×1-1/2

All 2L12×12 sizes and dimensions →

Similar weight double angles

Comparable 156 lb/ft sections in other double angle sizes.

2L10×10×1-1/4160 lb/ft · Sx 60.4 in³2L10×10×1-1/4×3/4160 lb/ft · Sx 60.4 in³2L10×10×1-1/4×1-1/2160 lb/ft · Sx 60.4 in³2L10×10×1-1/8145 lb/ft · Sx 55.2 in³2L10×10×1-1/8×3/4145 lb/ft · Sx 55.2 in³2L10×10×1-1/8×1-1/2145 lb/ft · Sx 55.2 in³2L10×10×1-3/8174 lb/ft · Sx 66 in³2L10×10×1-3/8×3/4174 lb/ft · Sx 66 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 2L12×12×1×3/4 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing