I've been considering getting some of these boards, but as nice as they look, it doesn't look like you can fit as much fabric onto a shelf as you can if it were just folded. For instance, in the photo below, there are about 30 different fabrics on each shelf. I doubt if I could fit 30 boards of fabric in the same space, but don't know this to be true. Has anyone else switched and can tell me the space conversion?