Originally Posted by
cjsews
The only suggestion I would have for you is to stitch around the outer edge to keep it from stretching while you quilt it.
Yes, I would stitch around the outside, but if it is all bias, that stitching can be made on stretched fabric. I would cut a very narrow piece of thin fabric the correct length, pin it many times all along the edge and sew it on right at the edge. This can stay in the binding to keep your edges from stretching.
I made a twister quilt, which is all bias throughout, and had to count how many squares were on one edge. Each square was 4 inch finished, multiplied the number of squares by 4, so made the border that long plus 1/2 inch for end seams, and pinned at each intersection. If you don't want to do that, the next best way is with starch. And be careful.