WT8x18 – WT Shapes

WT8x18 is a tee 7.93 in (201 mm) deep with a 6.99 in (178 mm) flange, weighing 18 lb/ft (26.8 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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Dimensions

PropertyValue
Nominal Weight (lb/ft)18.0
Depth of Section (in)7.93
Width of Section (in)6.99
Web Thickness (in)0.295
Flange Thickness (in)0.43
Kdet Dimension (in)1.125

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)30.6
Zx (in³)8.93
Sx (in³)5.05
rx (in)2.41
Iy (in⁴)12.2
Zy (in³)5.42
Sy (in³)3.5
ry (in)1.52
J (in⁴)0.272
Cw (in⁶)0.516
ro (in)3.3
H (-)0.745

Full sortable table: Section properties table for this family