If you wish to hang a stretched canvas painting on a wall without framing it, you can do so using a method that involves nails. While many would assume that a single nail in the center of the frame would suffice, the truth is that you need to use two nails per side in order to guarantee a sturdy finish. The extra support will allow you to hang the frame easily and quickly.
Hold the painting up to the wall in the position that you wish to hang it.
Lower the painting 1 inch and use a pencil to create four marks directly above the painting. The marks should be one-third from each side of the painting.
Hammer a nail into each mark, leaving about 1/2 inch of nail protruding from the wall. A 2-inch nail should be sufficient to hang all average-sized stretched canvases that have 1/2-inch thick frames.
Hang the painting by resting the frame over the nails.