With about 100 comic book boards ( got mine free from a credit with purchase), and some serious purging and donating, I ended up with this. ** que angel choir **
I lined the shelves with some of that special, thick liner for wire shelving. You can get it at the hardware store. I even got some at Publix! It helps keep the bolts from slipping through the bottom of the wire shelves. Lucky you if you have wood shelves.
The comic boards are about 7x10in. I just folded most of the fabrics from selvage to selvage, then in half again. I then wrapped it around the board a bit tightly, but not too tight so the board doesnt bend. Sometimes I used 2 for thicker fabrics, or very long yardage. Then secured them with a pin. You could probably use foam core, cereal boxes cut up, or even any boxes cut up.
Give it a try. I guarantee you will love it!