L12×12×1 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.

L12×12×1 has equal 12 in. legs, 1 in. thick.

At 77.8 lb per foot it is the lightest of the 4 L12×12 sizes, which run from 77.8 to 105 lb/ft.

For strong-axis bending its section modulus is Sx = 36.5 in³ and its moment of inertia Ix = 315 in⁴, with a plastic modulus Zx = 65.9 in³.

Detailing dimensions

Long leg12"
Short leg12"
Thickness (t)1"
k (detailing)1 11/16"

Section properties

Weight77.8 lb/ft
Area (A)23 in²
Ix315 in⁴
Sx36.5 in³
Zx65.9 in³
rx3.7 in
Iy315 in⁴
Sy36.5 in³
Zy65.9 in³
ry3.7 in
J7.8 in⁴

Other L12×12 sizes

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

L12×12×1-1/8L12×12×1-1/4L12×12×1-3/8

All L12×12 sizes and dimensions →

Similar weight angles

Comparable 77.8 lb/ft sections in other angle sizes.

L10×10×1-1/479.9 lb/ft · Sx 30.2 in³L10×10×1-1/872.3 lb/ft · Sx 27.6 in³L10×10×1-3/887.1 lb/ft · Sx 33 in³L10×10×164.7 lb/ft · Sx 24.8 in³L10×10×7/856.9 lb/ft · Sx 21.9 in³L8×8×1-1/856.9 lb/ft · Sx 17.5 in³L8×8×151 lb/ft · Sx 15.8 in³L10×10×3/449.1 lb/ft · Sx 19.2 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 L12×12×1 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Angles · Steel Beam Size Chart

Interactive drawing