With museum wraps, the canvas is stretched over stretcher bars and stapled on the back. The stretcher bars range in depth from 1/2" to 2". The image only shows on the front. There is a variety of stretcher bar widths and depths for canvas sizes ranging up to to 6'x8'. For larger pieces, a cross bar is used for extra support. Museum wraps can be painted on the sides or framed so that the sides are hidden. Framing always enhance any artwork. If framed, it is important to select a stretcher bar depth that is compatible with the frame you desire. For example, deeper stretcher bars (1.5" and 2") will look best in float frames or possible frames that are very deep so as to hide the deep sides of the museum wrap.