I purchase 98%of my wide backings from fabric.com. They have a terrific selection of wide fabrics from 108" up to 129" wide. Many colors/ prints. I've been shopping with them for almost 20 years and have never been disappointed. I haven't pieced a back in years. The 2% I purchase elsewhere is usually from my local quilt shop, they carry about half a dozen- sometimes one of theirs is what I want/ need.