Originally Posted by Moonpi
The difference can be easily explained. The backing, will only be doubled because there are no seams. That's why you came up so high on the calculations.
I really cheat :oops: and use the 108" wide for the backing. Buy it at Joann's with the 40% coupon ( I LOVE COUPONS) and generally get enough backing for a queen-size quilt for under $8.