HSS12×12×3/8 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.

HSS12×12×3/8 is a square tube 12 in. by 12 in. with a 3/8 in. nominal wall.

At 58.1 lb per foot it is one of the 9 HSS12×12 sizes, which run from 29.84 to 140.96 lb/ft.

For strong-axis bending its section modulus is Sx = 59.5 in³ and its moment of inertia Ix = 357 in⁴, with a plastic modulus Zx = 69.2 in³.

Detailing dimensions

Depth (Ht)12"
Width (B)12"
Nominal wall (t)3/8"

Section properties

Weight58.1 lb/ft
Area (A)16 in²
Ix357 in⁴
Sx59.5 in³
Zx69.2 in³
rx4.73 in
Iy357 in⁴
Sy59.5 in³
Zy69.2 in³
ry4.73 in
J561 in⁴

Other HSS12×12 sizes

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

HSS12×12×3/16HSS12×12×1/4HSS12×12×5/16HSS12×12×1/2HSS12×12×5/8HSS12×12×3/4HSS12×12×7/8HSS12×12×1

All HSS12×12 sizes and dimensions →

Similar weight HSS shapes

Comparable 58.1 lb/ft sections in other HSS tube sizes.

HSS20×4×3/858.1 lb/ft · Sx 65.7 in³HSS18×6×3/858.1 lb/ft · Sx 66.9 in³HSS16×8×3/858.1 lb/ft · Sx 66.3 in³HSS14×10×3/858.1 lb/ft · Sx 63.9 in³HSS20×8×5/1657.36 lb/ft · Sx 78.6 in³HSS18×10×5/1657.36 lb/ft · Sx 77.2 in³HSS16×12×5/1657.36 lb/ft · Sx 74.4 in³HSS14×14×5/1657.36 lb/ft · Sx 69.9 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 HSS12×12×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing