I hang large pieces of yardage over the shower curtain. Spray with starch and let dry.
The other option, is to sub cut the yardage before starching. There may be a little fabric waste. It is worth it to me to be able to handle smaller pieces.
I add an inch on each side of the piece to allow for shrinkage and to clean up the cut edges. I don’t need a 3 yard piece of fabric on the ironing board or cutting table. It’s much easier to work with the smaller pieces. Good luck!