WT18x80 – WT Shapes

WT18x80 is a tee 18 in (457 mm) deep with a 12 in (305 mm) flange, weighing 80 lb/ft (119.1 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)80.0
Depth of Section (in)18.0
Width of Section (in)12.0
Web Thickness (in)0.65
Flange Thickness (in)1.02
Kdet Dimension (in)2.25

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)740
Zx (in³)100
Sx (in³)55.8
rx (in)5.61
Iy (in⁴)147
Zy (in³)38.6
Sy (in³)24.6
ry (in)2.5
J (in⁴)6.17
Cw (in⁶)53.6
ro (in)7.46
H (-)0.678

Full sortable table: Section properties table for this family