Thick -Bulletin Board-Cork Board- Ultra Strong Self Adhesive Backing for Floor/Wall/DIY-5 Corksidol Cork Tiles 12"x12" - 1/2" Thick -Bulletin Board So between the slight warping and the small amount of dry shrink that
Sparco Cork Bulletin Board, 18" x 24", Oak Wood Frame - Walmart
Buy Sparco Cork Bulletin Board, 18" x 24", Oak Wood Frame at Walmart.com. The hanging cork board also contains a sealed back and a unique design to prevent warping. I was able to easily attach to the wall with some double stick tape.