Manton CorkCork Roll - 100% Natural, 4' x 4' x 3/8, Manton Cork Premium Facing Grade Material

Beautiful cork! No flaws what so ever. If purchasing, you will need to carefully unroll and lie flat with some weights to 'relax' the curl. This took at least five days. Worked out well for my custom cork board.

Takes a while to try to flatten out and even then it still wanted to curl. Just make sure you have good glue. Also the dimensions were larger than 4x4.

I love this thick product (good for a bulletin board without seams), but it's nearly impossible to get the rolled cork to every be flat so I can stick it to the wall. Laying it flat under heavy books isn't enough.