how to frame canvas art
Follow Steps 3-5 of the recessed mount frame above, but instead of adding 1/8 to the dimension of the artwork for your frame, add about 1/4 to create the float space in the frame. Step Six: Instead of nailing the frame together, you'll secure it by nailing it to the canvas stretcher from behind.
Step Five: Use finishing nails or wire brads to attach the frame to the canvas stretcher, making sure to also drive nails through the mitered joints in the corner, giving the wood glue some extra strength.