I love two sites I learned of here. The combination works for your block although I did't try it. Lynn Wilder's site explains how to do your block ( sewnwildoaks.blogspot.com ). Go to BlocLoc.com and click on Rulers on the header, then bloc loc FG Square up Rulers, then to No Waste FG method. Combining the two sites, measurements would be four small squares 3 1/8" X 3 1/8", one large square 5 1/2 X 5 1/2", and eight 2 1/2 X 2 1/2" squares.