Originally Posted by PurplePassion
If I wanted to make a Carpenter's Star quilt block --Lap size; about 45" square. What size would I cut my blocks and half -square triangles? Thank you Elaine
If your Carpenter's Star block is 8 squares X 8
I was looking at this pattern
http://www.quiltingboard.com/t-38408-1.htm
If you cut the solid blocks 5 1/2" (finishing at 5")
Your half square triangle blocks would be 6 3/8" if you draw a line on the back and sew on either side of it and cut them out.
your block will be 40" X 40"
you could add a 2 1/2" border and it would end up the right size. The binding could add a tad bit more to the finished size.