WT13.5X57

Structural Tee (from W) · AISC Shapes Database v15.0 · United States

WT13.5X57 is a structural tee cut from a W-shape 345.4 mm deep with a 256.5 mm wide flange, weighing 84.8 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.

WT tees are W-shapes split at mid-depth — common truss chords and hangers, tabulated for the cut section.

WT13.5X57 drawn to scale. Save as SVG DXF

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Published dimensions

Property	Metric	Imperial
Depth, d	345.4 mm	13.60 in
Flange width, bf	256.5 mm	10.10 in
Flange thickness, tf	23.6 mm	0.930 in
Web thickness, tw	14.5 mm	0.570 in
Mass per metre	84.8 kg/m	57.0 lb/ft
Area, A	10,839 mm²	16.80 in²
Second moment, Ix	120,290,882 mm⁴	289.0 in⁴
Second moment, Iy	33,007,152 mm⁴	79.3 in⁴

Derived section properties

Integrated from a square-cornered outline — the fillet radii this family really has are not drawn, so the computed values differ slightly from published. For WT13.5X57 the computed area is 1.10% from published and I_x 1.00%. Where a value is also published, the published one above is the one to quote.

Property	Value
Elastic modulus, S_x	460,591 mm³
Elastic modulus, S_y	259,718 mm³
Plastic modulus, Z_x	819,487 mm³
Plastic modulus, Z_y	405,493 mm³
Radius of gyration, rx	105.4 mm
Radius of gyration, ry	55.7 mm

S is the elastic modulus and Z the plastic modulus, following AISC 360. Australian and British practice reverse the letters.

Neighbouring sizes

LighterWT5X5683.3 kg/m HeavierWT15X5886.3 kg/m

Where these numbers come from

Published AISC Shapes Database v15.0 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API