L8×4×1 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.

L8×4×1 has a 8 in. long leg and a 4 in. short leg, 1 in. thick.

At 37.4 lb per foot it is the heaviest of the 7 L8×4 sizes, which run from 17.2 to 37.4 lb/ft.

For strong-axis bending its section modulus is Sx = 14 in³ and its moment of inertia Ix = 69.7 in⁴, with a plastic modulus Zx = 24.3 in³.

Detailing dimensions

Long leg8"
Short leg4"
Thickness (t)1"
k (detailing)1 1/2"

Section properties

Weight37.4 lb/ft
Area (A)11.1 in²
Ix69.7 in⁴
Sx14 in³
Zx24.3 in³
rx2.51 in
Iy11.6 in⁴
Sy3.94 in³
Zy7.73 in³
ry1.03 in
J3.68 in⁴

Other L8×4 sizes

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

L8×4×7/16L8×4×1/2L8×4×9/16L8×4×5/8L8×4×3/4L8×4×7/8

All L8×4 sizes and dimensions →

Similar weight angles

Comparable 37.4 lb/ft sections in other angle sizes.

L6×6×137.4 lb/ft · Sx 8.55 in³L8×8×3/438.9 lb/ft · Sx 12.2 in³L8×6×7/839.1 lb/ft · Sx 13.4 in³L8×6×3/433.8 lb/ft · Sx 11.7 in³L6×6×7/833.1 lb/ft · Sx 7.61 in³L8×8×5/832.7 lb/ft · Sx 10.3 in³L8×6×144.2 lb/ft · Sx 15.1 in³L8×8×7/845 lb/ft · Sx 14 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 L8×4×1 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Angles · Steel Beam Size Chart

Interactive drawing