Hi, My friends and I recently went on a Quilt Shop Hop and I purchased a set of rulers made by Marti Mitchell called My Favorite Log Cabin Ruler. There is one ruler that makes 1" and 2" finished strip sizes for making Log Cabin blocks up to 14 1/2 " square and the other one makes 3/4" and 1 1/2" finished strips for making Log Cabin blocks up to 13 1/2" squares. With these rulers, you can make perfect Log Cabin blocks. The two rulers cost $25 but are really worth it. I had the clerk demonstrate them and I was sold. crazydazy