HSS4×3×1/8 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.

HSS4×3×1/8 is a rectangular tube 4 in. by 3 in. with a 1/8 in. nominal wall.

At 5.61 lb per foot it is the lightest of the 5 HSS4×3 sizes, which run from 5.61 to 14.72 lb/ft.

For strong-axis bending its section modulus is Sx = 1.76 in³ and its moment of inertia Ix = 3.52 in⁴, with a plastic modulus Zx = 2.11 in³.

Detailing dimensions

Depth (Ht)4"
Width (B)3"
Nominal wall (t)1/8"

Section properties

Weight5.61 lb/ft
Area (A)1.54 in²
Ix3.52 in⁴
Sx1.76 in³
Zx2.11 in³
rx1.52 in
Iy2.27 in⁴
Sy1.51 in³
Zy1.73 in³
ry1.21 in
J4.38 in⁴

Other HSS4×3 sizes

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

HSS4×3×3/16HSS4×3×1/4HSS4×3×5/16HSS4×3×3/8

All HSS4×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 5.61 lb/ft sections in other HSS tube sizes.

HSS5×2×1/85.61 lb/ft · Sx 1.86 in³HSS3-1/2×3-1/2×1/85.61 lb/ft · Sx 1.66 in³HSS3-1/2×1-1/2×3/165.59 lb/ft · Sx 1.21 in³HSS3×2×3/165.59 lb/ft · Sx 1.18 in³HSS2-1/2×2-1/2×3/165.59 lb/ft · Sx 1.08 in³HSS3.000×0.1885.65 lb/ft · Sx 1.03 in³HSS2.375×0.2505.68 lb/ft · Sx 0.766 in³HSS2.875×0.2035.8 lb/ft · Sx 1.01 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 HSS4×3×1/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing