HSS16×8×5/16 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.

HSS16×8×5/16 is a rectangular tube 16 in. by 8 in. with a 5/16 in. nominal wall.

At 48.86 lb per foot it is one of the 7 HSS16×8 sizes, which run from 39.43 to 125.79 lb/ft.

For strong-axis bending its section modulus is Sx = 56.4 in³ and its moment of inertia Ix = 451 in⁴, with a plastic modulus Zx = 69.4 in³.

Detailing dimensions

Depth (Ht)16"
Width (B)8"
Nominal wall (t)5/16"

Section properties

Weight48.86 lb/ft
Area (A)13.4 in²
Ix451 in⁴
Sx56.4 in³
Zx69.4 in³
rx5.8 in
Iy155 in⁴
Sy38.7 in³
Zy43 in³
ry3.4 in
J369 in⁴

Other HSS16×8 sizes

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

HSS16×8×1/4HSS16×8×3/8HSS16×8×1/2HSS16×8×5/8HSS16×8×3/4HSS16×8×7/8

All HSS16×8 sizes and dimensions →

Similar weight HSS shapes

Comparable 48.86 lb/ft sections in other HSS tube sizes.

HSS20×4×5/1648.86 lb/ft · Sx 56 in³HSS18×6×5/1648.86 lb/ft · Sx 57 in³HSS14×10×5/1648.86 lb/ft · Sx 54.3 in³HSS12×12×5/1648.86 lb/ft · Sx 50.7 in³HSS12×4×1/248.85 lb/ft · Sx 34.9 in³HSS10×6×1/248.85 lb/ft · Sx 34.3 in³HSS9×7×1/248.85 lb/ft · Sx 33 in³HSS8×8×1/248.85 lb/ft · Sx 31.2 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 HSS16×8×5/16 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing