I chain piece until I am done with that unit. If I am working on a large quilt that could be more than I can keep count of. I would guess more than 200??? If I am working on a smaller project, say a wall hanging or table runner. There could be 20 or more of the same piece that is being chain pieced. Then each section is pressed and squared up for accuracy. Now that I am using the Accuquilt system I have less squaring up to do but still a lot of chain piecing.