WT12×42 tee (cut from a wide-flange)
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.
WT12×42 measures 12 in. deep with a 9 in. flange, on a 1/2 in. web and 3/4 in. flanges.
At 42 lb per foot it is one of the 21 WT12 sizes, which run from 27.5 to 185 lb/ft.
For strong-axis bending its section modulus is Sx = 18.3 in³ and its moment of inertia Ix = 166 in⁴, with a plastic modulus Zx = 32.5 in³.
Detailing dimensions
| Depth (d) | 12" |
|---|---|
| Flange width (bf) | 9" |
| Web thickness (tw) | 1/2" |
| Flange thickness (tf) | 3/4" |
| k (detailing) | 2 1/16" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 42 lb/ft |
|---|---|
| Area (A) | 12.4 in² |
| Ix | 166 in⁴ |
| Sx | 18.3 in³ |
| Zx | 32.5 in³ |
| rx | 3.67 in |
| Iy | 47.2 in⁴ |
| Sy | 10.5 in³ |
| Zy | 16.3 in³ |
| ry | 1.95 in |
| J | 1.84 in⁴ |
Other WT12 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All WT12 sizes and dimensions →
Similar weight structural tees
Comparable 42 lb/ft sections in other tee sizes.
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 WT12×42 cut, formed, or fabricated? Huntington Steel & Supply Co.
Browse more: Tees · Steel Beam Size Chart