I have made two Brickyard rag flannel quilts. The bricks are 6" x 9" and I sew straight lines about 2.5" in from each long edge (it could be an "x" if you wish)and chain the bricks in the row together. I use flannel as the batting and the quilts are heavy and warm. To make them a bit lighter, eliminate the middle layer of flannel. Yes the three layers, along with clipping every 1/4", makes the seams fluffy.