I was looking for the video from Kaye Wood. She demonstrated laundering large amount of yardage and she accordion folded the fabric and used large safety pins to pin the selvage edges and opposite edges. I bought a large amount of yardage and did a basting stitch around the edges. It worked for me. It would be up to you how you intend to use the fabric and possibly how you would cut it. I personally would cut in yard increments like in half or 2-3 yards. You could cut the size of a king size sheet and wash like you would a sheet. That is how I have done some but still did the basting stitch to help prevent fraying around the edge.