HSS24×18×1/2 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.

HSS24×18×1/2 is a rectangular tube 24 in. by 18 in. with a 1/2 in. nominal wall.

At 137.32 lb per foot it is one of the 5 HSS24×18 sizes, which run from 87.14 to 201.79 lb/ft.

For strong-axis bending its section modulus is Sx = 266 in³ and its moment of inertia Ix = 3190 in⁴, with a plastic modulus Zx = 314 in³.

Detailing dimensions

Depth (Ht)24"
Width (B)18"
Nominal wall (t)1/2"

Section properties

Weight137.32 lb/ft
Area (A)37.6 in²
Ix3190 in⁴
Sx266 in³
Zx314 in³
rx9.21 in
Iy2060 in⁴
Sy229 in³
Zy258 in³
ry7.39 in
J3910 in⁴

Other HSS24×18 sizes

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

HSS24×18×5/16HSS24×18×3/8HSS24×18×5/8HSS24×18×3/4

All HSS24×18 sizes and dimensions →

Similar weight HSS shapes

Comparable 137.32 lb/ft sections in other HSS tube sizes.

HSS22×20×1/2137.32 lb/ft · Sx 256 in³HSS18.000×0.750138.3 lb/ft · Sx 158 in³HSS26.000×0.500136.3 lb/ft · Sx 234 in³HSS14.000×1.000138.97 lb/ft · Sx 117 in³HSS12×12×1140.96 lb/ft · Sx 129 in³HSS16.000×0.875141.48 lb/ft · Sx 140 in³HSS22.000×0.625142.81 lb/ft · Sx 204 in³HSS30×10×1/2130.52 lb/ft · Sx 254 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 HSS24×18×1/2 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing