HSS12×8×3/8 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.

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

At 47.9 lb per foot it is one 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 = 43.7 in³ and its moment of inertia Ix = 262 in⁴, with a plastic modulus Zx = 53 in³.

Detailing dimensions

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

Section properties

Weight47.9 lb/ft
Area (A)13.2 in²
Ix262 in⁴
Sx43.7 in³
Zx53 in³
rx4.47 in
Iy140 in⁴
Sy35.1 in³
Zy40.1 in³
ry3.27 in
J293 in⁴

Other HSS12×8 sizes

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

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

All HSS12×8 sizes and dimensions →

Similar weight HSS shapes

Comparable 47.9 lb/ft sections in other HSS tube sizes.

HSS16×4×3/847.9 lb/ft · Sx 45 in³HSS14×6×3/847.9 lb/ft · Sx 45.3 in³HSS10×10×3/847.9 lb/ft · Sx 40.4 in³HSS18.000×0.25047.44 lb/ft · Sx 56.9 in³HSS9.625×0.50048.77 lb/ft · Sx 29.2 in³HSS12×4×1/248.85 lb/ft · Sx 34.9 in³HSS10×6×1/248.85 lb/ft · Sx 34.3 in³HSS9×7×1/248.85 lb/ft · Sx 33 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 HSS12×8×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing