HSS7×7×1/8 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.

HSS7×7×1/8 is a square tube 7 in. by 7 in. with a 1/8 in. nominal wall.

At 11.56 lb per foot it is the lightest 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 = 7.09 in³ and its moment of inertia Ix = 24.8 in⁴, with a plastic modulus Zx = 8.13 in³.

Detailing dimensions

Depth (Ht)7"
Width (B)7"
Nominal wall (t)1/8"

Section properties

Weight11.56 lb/ft
Area (A)3.16 in²
Ix24.8 in⁴
Sx7.09 in³
Zx8.13 in³
rx2.8 in
Iy24.8 in⁴
Sy7.09 in³
Zy8.13 in³
ry2.8 in
J38.2 in⁴

Other HSS7×7 sizes

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

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

All HSS7×7 sizes and dimensions →

Similar weight HSS shapes

Comparable 11.56 lb/ft sections in other HSS tube sizes.

HSS10×4×1/811.56 lb/ft · Sx 7.97 in³HSS6.000×0.18811.68 lb/ft · Sx 4.51 in³HSS5×2-1/2×1/411.36 lb/ft · Sx 3.76 in³HSS8×2×3/1611.97 lb/ft · Sx 5.61 in³HSS7×3×3/1611.97 lb/ft · Sx 5.65 in³HSS6×4×3/1611.97 lb/ft · Sx 5.46 in³HSS5×5×3/1611.97 lb/ft · Sx 5.03 in³HSS4×2×3/812.17 lb/ft · Sx 2.8 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 HSS7×7×1/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing