To make it easier to pull a piece out of piles without making a mess, leave 2 inches at top of pile. To pull a piece out, slide in ruler (width of fabric pile) above piece want and lift up. take your piece out, let down and slide ruler out. Still neat. If pile is to tight or heavy, need to find more space,to avoid messing it up. If pile to tall, insert another shelf. Put about 8-10 inches for flat piles