A canvas stretcher frame and method for fabricating same is provided comprised of four perimeter members and four corner members. Each of the perimeter members demonstrates continuous and uniform corner tine receiving channels, mounting material receiving channels and a cross bar mounting channel running the entire length of the perimeter member. The corner members are formed of two corner sections and can be opened, via a key to increase frame perimeter. Due to the continuous and uniform shape and configuration of the perimeter members and the affixation means formed therein, the perimeter members may be cut to form a frame of any desired perimeter dimension without need for further mortizing or machining of the cut member prior to assembly.