maviskw

That is a nice chart, but Jan from VA has a chart with pictures that is easy to understand without all the reading. I hope someone can find it and post it here.

Quilt 30 and feline fanatic have some good ideas. I would use both of them.

If your fabric is the wrong shape, make a pattern as suggested. Then if you really need to cut some of those side triangles with the bias on the long side, do the starch thing and then stay stitch the bias side. I would do the stay-stitching right away, not wait until it is sewn onto the quilt.

I doesn't hurt to add a little extra on these. Ask me how I know.

When I trim those edges, I lay my ruler from point to point and cut the side triangle 1/4 inch from those points to leave just that much seam allowance.