HSS7×7×5/16 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.

HSS7×7×5/16 is a square tube 7 in. by 7 in. with a 5/16 in. nominal wall.

At 27.59 lb per foot it is one of the 7 HSS7×7 sizes, which run from 11.56 to 50.81 lb/ft.

For strong-axis bending its section modulus is Sx = 16 in³ and its moment of inertia Ix = 56.1 in⁴, with a plastic modulus Zx = 18.9 in³.

Detailing dimensions

Depth (Ht)7"
Width (B)7"
Nominal wall (t)5/16"

Section properties

Weight27.59 lb/ft
Area (A)7.59 in²
Ix56.1 in⁴
Sx16 in³
Zx18.9 in³
rx2.72 in
Iy56.1 in⁴
Sy16 in³
Zy18.9 in³
ry2.72 in
J89.7 in⁴

Other HSS7×7 sizes

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

HSS7×7×1/8HSS7×7×3/16HSS7×7×1/4HSS7×7×3/8HSS7×7×1/2HSS7×7×5/8

All HSS7×7 sizes and dimensions →

Similar weight HSS shapes

Comparable 27.59 lb/ft sections in other HSS tube sizes.

HSS12×2×5/1627.59 lb/ft · Sx 17.4 in³HSS10×4×5/1627.59 lb/ft · Sx 18 in³HSS9×5×5/1627.59 lb/ft · Sx 17.7 in³HSS8×6×5/1627.59 lb/ft · Sx 17.1 in³HSS14.000×0.18827.69 lb/ft · Sx 25.9 in³HSS10×2×3/827.48 lb/ft · Sx 14.3 in³HSS9×3×3/827.48 lb/ft · Sx 14.7 in³HSS8×4×3/827.48 lb/ft · Sx 14.7 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 HSS7×7×5/16 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing