Use the search for this site -- there have been several postings about hsts, including some charts and measurements -- I was fascinated, for some reason, by the idea of 2 9-1/2 inch squares making 4 6-1/2 inch hsts -- it worked beautifully -- I did use starch and ironed out my hsts -- my points on my carpenter's wheel looked great -- there has been a post about making 16 at one time, too!!
I'm into easy!!