Custom stretch your canvas to what ever size you want! Made of warp-resistant, kiln-dried pine, wood strecher bars are finger-jointed and fit together easily with a tongue and groove mitered connection. With a size of 1 5/8" wide X 3/4" deep, and a 1/8" tapered lip, these stretcher strips are considered studio depth. Commonly in stock are lengths 8" – 48" by Frederix and Art Alternatives.
Click here to watch a video about how to stretch an art canvas (will take you to about.com website).