I have a lot of my fabric stored on the boards that fabric is sold on at the LQS and Joanns. I get them free at Joann's and cut into 4 equal size boards. Have folded quite a few yards on each one and they seem to hold up just fine and the best part is they are FREE. Instead of the ladies having to take them to the dumpster I take what they have. If fabric is good enough to be wrapped and shipped on that it should be good enough for me to store my fabric on without spending more money on acid free boards that can be spent on more fabric.