If you look at the kit contents on the site, it tells you how much you need of each fabric so you can make sure you have enough to do the quilt. Also, it appears that the blocks are 13" finished. Just guessing now, -- maybe a 9" center with 2" borders for the one square, half of them with a dark border and half with a light border. The others maybe a 5" center with 4" borders reversing the light and dark colors. Hope this helps. Ann