A frame system according to one embodiment includes a hollow outer frame element that includes a plurality of recesses formed along inner faces of walls of the outer frame element. The outer frame element further includes a plurality of ribs formed along the inner face and an inner landing that protrudes inwardly into a center opening of the outer frame element. The frame system also includes a back plate configured for insertion into the center opening. The back plate includes a plurality of locking ribs for reception within the plurality of recesses to generate a snap-fit attachment of the back plate to the hollow outer frame element.