I bought a chalk board and arrived today. It is a great surface, but on a 1/8 inch Masonite board. I need to attach this to a wall, but it is very flimsy and writing on it is terrible as it wobbles. I need to add something behind it. Two options- 1. Glue it to plywood. Problem here is trying to get the plywood the same size as the chalkboard (i'm not a carpenter). 2. Glue some wood panels at the back - one at the top, middle and bottom and two in between at the edges. This is easier as I can cut the wood and clamp/glue to panels on the back.
Any other ideas (not framing) and would glue/clamp with pine and masonite stick?