WT18×326 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.
WT18×326 measures 20 1/2 in. deep with a 17 5/8 in. flange, on a 2 in. web and 3 9/16 in. flanges.
At 326 lb per foot it is one of the 29 WT18 sizes, which run from 67.5 to 462.5 lb/ft.
For strong-axis bending its section modulus is Sx = 208 in³ and its moment of inertia Ix = 3160 in⁴, with a plastic modulus Zx = 383 in³.
Detailing dimensions
| Depth (d) | 20 1/2" |
|---|---|
| Flange width (bf) | 17 5/8" |
| Web thickness (tw) | 2" |
| Flange thickness (tf) | 3 9/16" |
| k (detailing) | 4 13/16" |
| Workable gage (g) | 7 1/2" |
Section properties
| Weight | 326 lb/ft |
|---|---|
| Area (A) | 96.2 in² |
| Ix | 3160 in⁴ |
| Sx | 208 in³ |
| Zx | 383 in³ |
| rx | 5.74 in |
| Iy | 1610 in⁴ |
| Sy | 184 in³ |
| Zy | 290 in³ |
| ry | 4.1 in |
| J | 295 in⁴ |
Other WT18 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All WT18 sizes and dimensions →
Similar weight structural tees
Comparable 326 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 WT18×326 cut, formed, or fabricated? Huntington Steel & Supply Co.
Browse more: Tees · Steel Beam Size Chart