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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Dimensions

PropertyValue
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

PropertyValue
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