Here is something to go by from a NYB sew along I was following. These are 8x8 blocks so adjust what is needed from there. Remember scrappy is ok.
Here are the approximate fabric requirements if you are planning on making all ten 8" x 8" blocks:
- 10 fat eighths for main fabrics (or 5 fat quarters or scrap fabric)
- 1-1/2 yards background fabric