So I am starting a new quilt 90 x 108 and I wanted to put either one or two borders on it 1.5 inches wide. I pu. rschaed my backing today when I got home I realized that the fabric is 45 and I purchased 6 yards of fabric and will sew them together to make it 90 wide so , it looks like I might have to cut down the sides of my quilt order for my backing fabric to fit. Does anyone know how many inches I need to cut off on the sides of my quilt for the borders? I have tried to figure it out and I think I have it but don't want to cut unless I am absoultely correct. Tks for the help.