I don't wash any of my fabrics but I do starch them before I cut into them. I have 2 sizes of the comic book boards. Anything 2yds or less goes on the smaller size, anything over 2yds up to 4 yds go onto the larger sizes. Anything over that goes on bolts. I've got over 1,000 of these boards in 2 sizes and I actually ran out. I never put the fat quarters on them but keep them in a container. The boards just make it look neater on the shelves than when they were getting wrinkled or would fall over.