What advice would you give someone starting this project? This herringbone pattern is in half square triangles. Start by figuring out the dimensions for the quilt and how wide you want the squares to be. Mine are 9 inches. I just cut 9.5 inch squares and sewed them together on the diagonal just off center once up and once back. Then I cut down the center of the stitches and squared them off. Lay it out to get the design right. It's also easy to use these half square triangles to make a chevron quilt if you so choose.