WT18x75 – WT Shapes

WT18x75 is a tee 17.9 in (455 mm) deep with a 12 in (305 mm) flange, weighing 75 lb/ft (111.6 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)75.0
Depth of Section (in)17.9
Width of Section (in)12.0
Web Thickness (in)0.625
Flange Thickness (in)0.94
Kdet Dimension (in)2.1875

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)698
Zx (in³)95.5
Sx (in³)53.1
rx (in)5.62
Iy (in⁴)135
Zy (in³)35.4
Sy (in³)22.5
ry (in)2.47
J (in⁴)5.04
Cw (in⁶)46
ro (in)7.5
H (-)0.67

Full sortable table: Section properties table for this family