HSS3×1×1/8 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.

HSS3×1×1/8 is a rectangular tube 3 in. by 1 in. with a 1/8 in. nominal wall.

At 3.05 lb per foot it is the lightest of the 2 HSS3×1 sizes, which run from 3.05 to 4.32 lb/ft.

For strong-axis bending its section modulus is Sx = 0.545 in³ and its moment of inertia Ix = 0.817 in⁴, with a plastic modulus Zx = 0.728 in³.

Detailing dimensions

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

Section properties

Weight3.05 lb/ft
Area (A)0.84 in²
Ix0.817 in⁴
Sx0.545 in³
Zx0.728 in³
rx0.987 in
Iy0.138 in⁴
Sy0.276 in³
Zy0.325 in³
ry0.405 in
J0.408 in⁴

Other HSS3×1 sizes

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

HSS3×1×3/16

Similar weight HSS shapes

Comparable 3.05 lb/ft sections in other HSS tube sizes.

HSS2-1/2×1-1/2×1/83.05 lb/ft · Sx 0.535 in³HSS2×2×1/83.05 lb/ft · Sx 0.486 in³HSS2×1×3/163.04 lb/ft · Sx 0.35 in³HSS1-1/2×1-1/2×3/163.04 lb/ft · Sx 0.315 in³HSS2.375×0.1253.01 lb/ft · Sx 0.443 in³HSS2.500×0.1253.17 lb/ft · Sx 0.495 in³HSS1.900×0.1452.72 lb/ft · Sx 0.309 in³HSS1.900×0.1883.44 lb/ft · Sx 0.374 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 HSS3×1×1/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing