[jhgrahamjr]

Joe--How did you cut the wall panel to the shape of your grille cloth mounting board? I found a "Tempered Harboard 1/8 in. x 2 ft. x 4 ft" project panel available through Home Depot for $5.97. I was searching under MDF and also under Masonite. Would this work? I suspect it's too hard to use an Exacto knife or similar. Would one use a manual coping saw, or what would be your best suggestion? Here is my broken backing board, and a sample of the deteriorated grille cloth with the amazing metallic copper sheen which doesn't show in the photograph.