Here is my perdicament: I need to cover a window in order to mount my screen. The screen is a 4'x8' sheet of formica somehow (haven't done it yet) adhered to a 3/4" peice of plywood. Behind the plywood I will "frame out" with 2x4's to bring it over the window and off the wall. How should I go about this? Do you have any suggestions on how to accomplish this? Thanks.