this open back frame was made for a photographer i work with and was for a family portrait canvas. it is 24x36 opening with 4" on each side. This frame i adore. its so weathered and distressed and with a final touch of antiquing glaze and wax its just so shabby chic. this frame can be made in any size and would be so great as a mirror too :) email me for more info! this frame is the perfect solution for framing a canvas!