HSS20×16×1/2 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.

HSS20×16×1/2 is a rectangular tube 20 in. by 16 in. with a 1/2 in. nominal wall.

At 116.91 lb per foot it is one of the 6 HSS20×16 sizes, which run from 59.85 to 171.16 lb/ft.

For strong-axis bending its section modulus is Sx = 190 in³ and its moment of inertia Ix = 1900 in⁴, with a plastic modulus Zx = 224 in³.

Detailing dimensions

Depth (Ht)20"
Width (B)16"
Nominal wall (t)1/2"

Section properties

Weight116.91 lb/ft
Area (A)32.1 in²
Ix1900 in⁴
Sx190 in³
Zx224 in³
rx7.7 in
Iy1350 in⁴
Sy169 in³
Zy193 in³
ry6.5 in
J2480 in⁴

Other HSS20×16 sizes

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

HSS20×16×1/4HSS20×16×5/16HSS20×16×3/8HSS20×16×5/8HSS20×16×3/4

All HSS20×16 sizes and dimensions →

Similar weight HSS shapes

Comparable 116.91 lb/ft sections in other HSS tube sizes.

HSS24×12×1/2116.91 lb/ft · Sx 202 in³HSS22×14×1/2116.91 lb/ft · Sx 197 in³HSS18×18×1/2116.91 lb/ft · Sx 181 in³HSS18.000×0.625116.09 lb/ft · Sx 134 in³HSS22.000×0.500114.92 lb/ft · Sx 166 in³HSS16.000×0.750122.27 lb/ft · Sx 123 in³HSS14.000×0.875122.77 lb/ft · Sx 105 in³HSS28.000×0.375110.74 lb/ft · Sx 207 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 HSS20×16×1/2 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing