Most of the fabrics on the 11 3/4 inch boards are 2 yard cuts. The small ones have a yard and some have half and fat quarters. I have lots of long quarters to which I am going to fold and just lay flat. The the bolts on the bottom are six yards or more. They are for backings. I used the bolts from the store. I have two more book cases to fill but I am almost out of coroplast. Guess I need another box of that too. I hate to put the doors on cause I love looking at all the colors.