HSS24×18×3/4 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.

HSS24×18×3/4 is a rectangular tube 24 in. by 18 in. with a 3/4 in. nominal wall.

At 201.79 lb per foot it is the heaviest 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 = 382 in³ and its moment of inertia Ix = 4580 in⁴, with a plastic modulus Zx = 456 in³.

Detailing dimensions

Depth (Ht)24"
Width (B)18"
Nominal wall (t)3/4"

Section properties

Weight201.79 lb/ft
Area (A)55.4 in²
Ix4580 in⁴
Sx382 in³
Zx456 in³
rx9.09 in
Iy2940 in⁴
Sy327 in³
Zy375 in³
ry7.29 in
J5690 in⁴

Other HSS24×18 sizes

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

HSS24×18×5/16HSS24×18×3/8HSS24×18×1/2HSS24×18×5/8

All HSS24×18 sizes and dimensions →

Similar weight HSS shapes

Comparable 201.79 lb/ft sections in other HSS tube sizes.

HSS22×20×3/4201.79 lb/ft · Sx 367 in³HSS26.000×0.750202.44 lb/ft · Sx 342 in³HSS20.000×1.000203.11 lb/ft · Sx 254 in³HSS24×12×7/8197.24 lb/ft · Sx 326 in³HSS18×18×7/8197.24 lb/ft · Sx 292 in³HSS20×12×1195.4 lb/ft · Sx 274 in³HSS16×16×1195.4 lb/ft · Sx 249 in³HSS30×10×3/4191.58 lb/ft · Sx 363 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 HSS24×18×3/4 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing