Originally Posted by
quiltingcurious
Yes, I was thinking that if you added a 1/4" seam to all sides of a 9" block it would make it a 10" block you would have to cut in order to sew it on all 4 sides with a 1/4" seam to get a 9" finished block in the quilt.
1/4" added to each side x 4 sides would equal 1" more.
GingerK has an excellent explanation a few posts before this one. You must add ONLY 1/2" to get the desired size. Please take the time to draw a visual if you still have your doubts.