Diagonal Backing. The Florida Quilt Network
Diagonal-Backing. Diagonal-Backing-Worksheet.pdf (jinnybeyer.com)
Pieced backing. Quilt Backing Guide | Free PDF Pattern | Fat Quarter Shop
Quilter’s Paradise. Quilter’s Paradise – Free Backing and Batting Calculator (quiltersparadiseesc.com)
Stitched in Color. 8 Ideas for Making a Quilt Backing — Stitched in Color