HSS20×4×1/4 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.

HSS20×4×1/4 is a rectangular tube 20 in. by 4 in. with a 1/4 in. nominal wall.

At 39.43 lb per foot it is the lightest of the 4 HSS20×4 sizes, which run from 39.43 to 76.07 lb/ft.

For strong-axis bending its section modulus is Sx = 45.8 in³ and its moment of inertia Ix = 458 in⁴, with a plastic modulus Zx = 61.5 in³.

Detailing dimensions

Depth (Ht)20"
Width (B)4"
Nominal wall (t)1/4"

Section properties

Weight39.43 lb/ft
Area (A)10.8 in²
Ix458 in⁴
Sx45.8 in³
Zx61.5 in³
rx6.5 in
Iy34.3 in⁴
Sy17.1 in³
Zy18.7 in³
ry1.78 in
J111 in⁴

Other HSS20×4 sizes

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

HSS20×4×5/16HSS20×4×3/8HSS20×4×1/2

All HSS20×4 sizes and dimensions →

Similar weight HSS shapes

Comparable 39.43 lb/ft sections in other HSS tube sizes.

HSS18×6×1/439.43 lb/ft · Sx 46.5 in³HSS16×8×1/439.43 lb/ft · Sx 46.1 in³HSS14×10×1/439.43 lb/ft · Sx 44.3 in³HSS12×12×1/439.43 lb/ft · Sx 41.4 in³HSS10.000×0.37538.58 lb/ft · Sx 24.7 in³HSS16×4×5/1640.35 lb/ft · Sx 38.5 in³HSS14×6×5/1640.35 lb/ft · Sx 38.7 in³HSS12×8×5/1640.35 lb/ft · Sx 37.4 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 HSS20×4×1/4 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing