ST6×25 tee (cut from a standard beam)

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.

ST6×25 measures 6 in. deep with a 5 1/2 in. flange, on a 11/16 in. web and 11/16 in. flanges.

At 25 lb per foot it is the heaviest of the 4 ST6 sizes, which run from 15.9 to 25 lb/ft.

For strong-axis bending its section modulus is Sx = 6.04 in³ and its moment of inertia Ix = 25.1 in⁴, with a plastic modulus Zx = 11 in³.

Detailing dimensions

Depth (d)6"
Flange width (bf)5 1/2"
Web thickness (tw)11/16"
Flange thickness (tf)11/16"
k (detailing)1 7/16"
Workable gage (g)3"

Section properties

Weight25 lb/ft
Area (A)7.33 in²
Ix25.1 in⁴
Sx6.04 in³
Zx11 in³
rx1.85 in
Iy7.79 in⁴
Sy2.84 in³
Zy5.16 in³
ry1.03 in
J1.36 in⁴

Other ST6 sizes

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

ST6×15.9ST6×17.5ST6×20.4

All ST6 sizes and dimensions →

Similar weight structural tees

Comparable 25 lb/ft sections in other tee sizes.

WT10.5×2525 lb/ft · Sx 10.7 in³WT9×2525 lb/ft · Sx 7.79 in³WT8×2525 lb/ft · Sx 6.78 in³WT6×2525 lb/ft · Sx 3.79 in³ST7.5×2525 lb/ft · Sx 7.72 in³WT5×24.524.5 lb/ft · Sx 2.39 in³WT10.5×2424 lb/ft · Sx 9.9 in³WT7×2424 lb/ft · Sx 4.49 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 ST6×25 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Tees · Steel Beam Size Chart

Interactive drawing