You will need 8 !/2 yards of backing for this quilt and if you order this at the same time as you order the quilt kit, you will receive the discount of 20% off.  This quilt is 85 1/4" x 85 1/4".  This pattern actually has 2 different versions.....Liberty & Justice For All is a feathered star quilt. The Liberty Quilt is a star quilt that will measure 86" x 86". You get both versions in this pattern.