Fredrix Lightweight Stretcher Bars

Fredrix Standard Stretcher Strips feature tongue-and-groove design, each stretcher strip measures 1 5/8" × 11/16" with a full 1/8" tapered lip for maximum clearance. They are molded on modern woodworking machines to ensure a smooth and tight fit.
Kiln dried to prevent warping.
  1 5/8 in. x 5/8in.

Strips sold individually .
Remember it takes 4 bars to make one canvas