Originally Posted by pennyswings
Mary;
Looking again at the pattern that called for the 1.5 inch strips that made the finished block 7 inches, that was with a finished 1 inch center block. So if I use 2.5 inch strip with a 2 inch center block that should make the block 14 inches am I right?
Yes, that's right. With 14-inch blocks, if you lay them out 5 blocks across by 6 blocks down, you will get a quilt size of about 70 inches by 84 inches. You can add borders as desired to get the size you want.
Just be careful to see if you can get the overall design you want from this combination of squares. There are many different log cabin layouts. The same size and layout made with 14-inch blocks can look quite different when made with 7-inch blocks. Smaller blocks create more design repeats.
What I have loved about log cabin blocks is that, once I have the blocks made, I always seem able to make a pleasing arrangement with them. I usually make a few extra blocks so I can experiment with different layouts. With the larger blocks, you may end up preferring a different layout from the one you have seen.