WT18x128 – WT Shapes
WT18x128 is a tee 18.7 in (475 mm) deep with a 12.2 in (310 mm) flange, weighing 128 lb/ft (190.5 kg/m).
WT shapes are structural tees produced by splitting a W shape lengthwise down the centre of its web, yielding a T-shaped cross-section with the flange width and thickness of the parent W shape. They're used as chords in trusses and open-web steel joists, as flanges welded to plate to build up girders and other custom sections, and anywhere a single wide bearing flange on a stem is more structurally efficient than a full I-shaped section — typically where only one face of the member needs to carry a bearing or connection load.
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Nearby Sections
Dimensions
| Property | Value |
|---|---|
| Nominal Weight (lb/ft) | 128.0 |
| Depth of Section (in) | 18.7 |
| Width of Section (in) | 12.2 |
| Web Thickness (in) | 0.96 |
| Flange Thickness (in) | 1.73 |
| Kdet Dimension (in) | 2.9375 |
Full sortable table: Dimensions table for this family
Section Properties
| Property | Value |
|---|---|
| Ix (in⁴) | 1210 |
| Zx (in³) | 156 |
| Sx (in³) | 87.4 |
| rx (in) | 5.66 |
| Iy (in⁴) | 264 |
| Zy (in³) | 68.5 |
| Sy (in³) | 43.2 |
| ry (in) | 2.65 |
| J (in⁴) | 26.4 |
| Cw (in⁶) | 205 |
| ro (in) | 7.45 |
| H (-) | 0.703 |
Full sortable table: Section properties table for this family
