6. Once the paint has dried on the canvas and the frame, you can re-attach them.
Try to center the canvas the best you can to the frame. Staple one corner. For the purpose of this tutorial let’s call the first corner the top left corner.
Pull the canvas as tight as you can along the top, all the way to the top right corner. Staple that corner next.
Now, again pulling down from your top left corner, pull as tight as you can and staple the bottom left corner.
Finally pull the last corner, bottom right as tight as possible and staple.
I find that pulling and stapling the corners in this fashion does not allow for loose material to be left along the edges.
Once all 4 corners are stapled you can fill in the length and widths of the canvas with additional staples. Before adding staples, make sure to pull the canvas tight at each staple point.