HSS3×3×3/16 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.

HSS3×3×3/16 is a square tube 3 in. by 3 in. with a 3/16 in. nominal wall.

At 6.87 lb per foot it is one of the 5 HSS3×3 sizes, which run from 4.75 to 12.17 lb/ft.

For strong-axis bending its section modulus is Sx = 1.64 in³ and its moment of inertia Ix = 2.46 in⁴, with a plastic modulus Zx = 1.97 in³.

Detailing dimensions

Depth (Ht)3"
Width (B)3"
Nominal wall (t)3/16"

Section properties

Weight6.87 lb/ft
Area (A)1.89 in²
Ix2.46 in⁴
Sx1.64 in³
Zx1.97 in³
rx1.14 in
Iy2.46 in⁴
Sy1.64 in³
Zy1.97 in³
ry1.14 in
J4.03 in⁴

Other HSS3×3 sizes

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

HSS3×3×1/8HSS3×3×1/4HSS3×3×5/16HSS3×3×3/8

All HSS3×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 6.87 lb/ft sections in other HSS tube sizes.

HSS4×2×3/166.87 lb/ft · Sx 1.83 in³HSS3-1/2×2-1/2×3/166.87 lb/ft · Sx 1.76 in³HSS2.875×0.2507.02 lb/ft · Sx 1.18 in³HSS3.500×0.1886.66 lb/ft · Sx 1.44 in³HSS3-1/2×1-1/2×1/47.11 lb/ft · Sx 1.46 in³HSS3×2×1/47.11 lb/ft · Sx 1.42 in³HSS2-1/2×2-1/2×1/47.11 lb/ft · Sx 1.3 in³HSS3.500×0.2037.15 lb/ft · Sx 1.54 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 HSS3×3×3/16 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing