I have a question concerning the Bloc Loc rulers. The ruler sizes mentioned were the 1 x 2 inch, 1 1/2 x 3 inch, and 2x4 inch finished sizes. Is that the size of ruler that you order, or do I need to add a half an inch to those measurements? If I need to add the 1/2 inch, that's a problem, because I don't see those sizes on the Bloc Loc site. The 5 inch finished half square triangle was also recommended, but they only have a 5 1/2 size or a 4 1/2 inch size. So it's kind of confusing if you know what I mean. Clarification would be appreciated. I'm finishing up ironing all my fabrics, and will be ready to start piecing soon. I may wait till after Monday's show though. Thanks for the help. Donna