Hi! I'm presently using up my stash creating 12 inch blocks for a "full size" bed quilt, not following any particular pattern and not sure how many blocks I will need. I was going to lay the blocks across the bed as I create them to see how many I will need. I would like to know how to calculate the amount of fabric I will need for a solid back. Also, I would like to place one inch sashing in between the blocks and add a 2 or 3 inch border around the quilt (could be same color as sashing). Is there a special formula for calculating yardage for that as well?
Thanking you all in advance! Pat