HSS8×8×3/8 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.

HSS8×8×3/8 is a square tube 8 in. by 8 in. with a 3/8 in. nominal wall.

At 37.69 lb per foot it is one of the 7 HSS8×8 sizes, which run from 13.26 to 59.32 lb/ft.

For strong-axis bending its section modulus is Sx = 24.9 in³ and its moment of inertia Ix = 100 in⁴, with a plastic modulus Zx = 29.4 in³.

Detailing dimensions

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

Section properties

Weight37.69 lb/ft
Area (A)10.4 in²
Ix100 in⁴
Sx24.9 in³
Zx29.4 in³
rx3.1 in
Iy100 in⁴
Sy24.9 in³
Zy29.4 in³
ry3.1 in
J160 in⁴

Other HSS8×8 sizes

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

HSS8×8×1/8HSS8×8×3/16HSS8×8×1/4HSS8×8×5/16HSS8×8×1/2HSS8×8×5/8

All HSS8×8 sizes and dimensions →

Similar weight HSS shapes

Comparable 37.69 lb/ft sections in other HSS tube sizes.

HSS12×4×3/837.69 lb/ft · Sx 28 in³HSS10×6×3/837.69 lb/ft · Sx 27.4 in³HSS9×7×3/837.69 lb/ft · Sx 26.4 in³HSS7.500×0.50037.42 lb/ft · Sx 17 in³HSS9.625×0.37537.08 lb/ft · Sx 22.8 in³HSS10.000×0.37538.58 lb/ft · Sx 24.7 in³HSS14.000×0.25036.75 lb/ft · Sx 34.1 in³HSS14×4×5/1636.1 lb/ft · Sx 30.9 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 HSS8×8×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing