Hi, slowly but surely finding my way around the board.
Maybe these would help you:
http://www.quiltingboard.com/t-32266-1.ht [it some Eleanor Burns info] and
PatriceJ moderator had a post from Jan.24'08:
http://www.quiltingboard.com/t-4208-1.htm for paper piecing a wedding ring.
I know these are not a yardage chart. Certainly, others who have made the double wedding ring will give you the guidance that you need.
Post all about it; when you can.