I folded my fabric that way, stacked it by color or theme. Then I was thinking about getting the comic book boards, so on a whim I put those folded fabrics vertical, wondering how much room they would take up that way vs. in stacks. They stood up without the boards!!! I was so thrilled. I now have most of my fabric standing vertically (much easier to take a piece out that way) and am not having to buy boards! All the pieces I did this with are 1 yard or more.