HSS12×8×5/8 square/rectangular HSS tube

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.

HSS12×8×5/8 is a rectangular tube 12 in. by 8 in. with a 5/8 in. nominal wall.

At 76.33 lb per foot it is the heaviest of the 6 HSS12×8 sizes, which run from 24.73 to 76.33 lb/ft.

For strong-axis bending its section modulus is Sx = 66.1 in³ and its moment of inertia Ix = 397 in⁴, with a plastic modulus Zx = 82.1 in³.

Detailing dimensions

Depth (Ht)12"
Width (B)8"
Nominal wall (t)5/8"

Section properties

Weight76.33 lb/ft
Area (A)21 in²
Ix397 in⁴
Sx66.1 in³
Zx82.1 in³
rx4.34 in
Iy210 in⁴
Sy52.5 in³
Zy61.9 in³
ry3.16 in
J454 in⁴

Other HSS12×8 sizes

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

HSS12×8×3/16HSS12×8×1/4HSS12×8×5/16HSS12×8×3/8HSS12×8×1/2

All HSS12×8 sizes and dimensions →

Similar weight HSS shapes

Comparable 76.33 lb/ft sections in other HSS tube sizes.

HSS16×4×5/876.33 lb/ft · Sx 67.3 in³HSS14×6×5/876.33 lb/ft · Sx 68.3 in³HSS10×10×5/876.33 lb/ft · Sx 60.8 in³HSS20×4×1/276.07 lb/ft · Sx 83.8 in³HSS18×6×1/276.07 lb/ft · Sx 85.6 in³HSS16×8×1/276.07 lb/ft · Sx 84.9 in³HSS14×10×1/276.07 lb/ft · Sx 81.8 in³HSS12×12×1/276.07 lb/ft · Sx 76.2 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 HSS12×8×5/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing