Each strip should be FINISHED at 20" wide. You will cut the center blue strip 20 1/2" wide by 68" long, which will allow plenty of fabric for it to be sandwiched for quilting. The yellow strips need to be cut 24" by 68", which allows plenty of fabric on the sides of the quilt. I'm not always sure what a LA quilter wants for extra fabric to be able to quilt it comfortably. You will have to piece the yellow/blue fabric to get your total of 68" in length. Hope this helps.
Thinking about this again- you won't have enough width on the yellow fabric to make it 24" wide because you need two cuts 24" wide and your fabric most likely is nearer to 42-45". How is it to be quilted? I don't have to have more than a couple inches around the edges to quilt on my domestic machine or by hand. But it takes more for a LAQ. It would require more fabric in that case.
Last edited by jillnjo; 08-03-2012 at 12:27 PM.