Originally Posted by
Peckish
Not to throw a monkey wrench into the works, but sashing around all 4 sides of the block is exactly how I do it. That way all I have to do is sew the finished blocks into rows and match the seams at the corners. Takes the headache out of making sure the rows all line up perfectly on long rows of sashing.
But when you do this I would have to think that you must reduce the width of your sashing strips to half of what you would use if sashing in the more tradtional aspect. In the OP's example surely she would not sash 4" blocks with 2" (finished) strips on all 4 sides, That would make the finished size of the sashing the same size of the blocks completely defeating the look of sashing and making it look more like alternate unpieced blocks.
So I think she is still quite safe with 2 yards of fabric for the sashing whichever way she decides to sash. IMHO when doing corner stones it is very easy to line the strips up when assembling the quilt. Order an extra yard just to be safe or in case she decides to use the sashing fabric as binding as well.