Thank you for all the responses! What a help you all are. Still more questions....
I haven't reached the level of master picture poster yet. LOL Son is supposed to 'tute me on that. Soon he says anyway.
I started with 4" squared squares. I had to draw the sew lines on the backs and the diagonal cut lines, simply because I can't see enough to sew at times.
They seem to vary between 3 1/2" and 3 5/8" from the random ones I looked at.
Should I starch before squaring? Or after, before sewing into strips?