I have been trying to figure out how wide I need to make my sashing. I thought 1.5" since the border around the appliquéd circle is 1 in, but it doesn't seem to be working. I am probably over-thinking this process. I would like to have sashing between all of the blocks. Thanks for any help!

Click image for larger version. 

Name:	9025.jpg 
Views:	103 
Size:	64.8 KB 
ID:	134454