HSS20×12×5/8 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.

HSS20×12×5/8 is a rectangular tube 20 in. by 12 in. with a 5/8 in. nominal wall.

At 127.37 lb per foot it is one of the 7 HSS20×12 sizes, which run from 65.87 to 195.4 lb/ft.

For strong-axis bending its section modulus is Sx = 188 in³ and its moment of inertia Ix = 1880 in⁴, with a plastic modulus Zx = 230 in³.

Detailing dimensions

Depth (Ht)20"
Width (B)12"
Nominal wall (t)5/8"

Section properties

Weight127.37 lb/ft
Area (A)35 in²
Ix1880 in⁴
Sx188 in³
Zx230 in³
rx7.33 in
Iy851 in⁴
Sy142 in³
Zy162 in³
ry4.93 in
J1890 in⁴

Other HSS20×12 sizes

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

HSS20×12×5/16HSS20×12×3/8HSS20×12×1/2HSS20×12×3/4HSS20×12×7/8HSS20×12×1

All HSS20×12 sizes and dimensions →

Similar weight HSS shapes

Comparable 127.37 lb/ft sections in other HSS tube sizes.

HSS22×10×5/8127.37 lb/ft · Sx 191 in³HSS16×16×5/8127.37 lb/ft · Sx 171 in³HSS16×8×7/8125.79 lb/ft · Sx 131 in³HSS14×10×7/8125.79 lb/ft · Sx 127 in³HSS12×12×7/8125.79 lb/ft · Sx 118 in³HSS24.000×0.500125.61 lb/ft · Sx 198 in³HSS20.000×0.625129.45 lb/ft · Sx 167 in³HSS20×8×3/4130.33 lb/ft · Sx 167 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 HSS20×12×5/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing