You can also get a tri fold Elmers' Display board that is made of some pretty sturdy cardboard.
Or, you can get foam board for 1.00 at the Dollar Trees. I hope this helps.
Go to Lowe's or Home Depot and have them cut a thin piece of plywood to your measure. Glue 12" corkboard squares to this. I have done this for my sewing room, but used a large piece of corrugated cardboard for the backing and put it up on the wall with mirror hangers.
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