I am going to call my fabric groups ‘Light’ and ‘Dark’ but you can use any two high contrast types of fabric.
We’ll be putting this block together using strips of fabric. Because of the way we’re going to sew it together as long as your strips are at least 20″ long you’re good to go. The length of your strips doesn’t matter a whole lot, it’s the width that counts.
8 strips that 2″ wide and at least 20″ long
15 strips that are 1.5″ wide and at least 20″ long*
15 strips that are 2″ wide and at least 20″ long
9 strips that are 1.5″ wide and at least 20″ long*
So now I have strips that are light and thin, strips that are light and thick plus strips that are dark and thin and strips which are dark and thick. I put them in four Ziploc bags and labelled them as such.