If you use a metal frame, you will have to have one deep enough to
accommodate the depth of the canvas lip, the stretcher depth. Then the
stretched canvas can be secured by those little silly metal clips. If
you are using a wooden frame, you can one, glaze it in with glazing
points (that really cool gun that shoots diamonds) or if the stretcher
and frame are even around the perimeter, then you can use a heavy duty
staple gun making sure to catch both the side of the frame and the side
of the stretcher. Hope this helps.