I have used EQ since EQ4. Up until EQ7 all fabric yardage was figured on the LOF and it also figures yardage on a full square! That being said. If you have a quilt that has a final border that is 54 inches you need to have at least 58 inches for squaring up the length wise cuts! I would purchase 60 inches. I write my patterns based on WOF and piecing the borders. I do use LOF when I have enough fabric left. Then I always add to the scrap pile! Luann in CT