Originally Posted by hardwareman
ok here is what I would do. Since you said you don't mind the toggle bolts going through the back panel, why not take a piece of 1/2" plywood. Cut it the exact same dimensions as your micro wave back. Screw it to the backer panel from the opposite side of the micro with about 6 or 8 black headed screws. That way you have a good solid backing to screw you support to.
I would screw through the panel into the ply.
Again,MW will hide any screws AND more of the screw is grabbing the ply and not the panel.
Oh,and the MW doesn't hang from the cabnet.
It is bolted to it.