I am partially disabled and cannot wander the aisles of quilt shops. Many websites have backing fabrics for very reasonable prices. I like the 6 yard bolts of Kona cotton black or white (and sometimes other colors) at Fabric Depot. Sometimes it is as cheap as $22.00 for 6 yards. I love Connecting Threads and Fabric .com. Where was I shopping yesterday that had backings 109" wide? Oh dang! I miss my mind so much since I lost it!