My DH cuts boards for me out of foam core board. There is a strip left over from a sheat of board that is just right for fatqtrs. I have no idea how many boards he has cut for me but I have 7 book cases full and just cleaned off my table and wrapped some more and filled up 2 big tubs cause I ran out of shelves. No more room for any more shelves so don't know what I will do next. My shelves sure do look nice!!!