Step 1: Measure
Measure the length of your quilt sides (they should both be the same!).
Step 2: Cut
Cut fabric strips to this length and sew to the sides with a 1⁄4in seam allowance.
Step 3: Fold
Fold to the back and slipstitch in place.
Step 4: Measure and Cut Again
Measure the top and bottom of your quilt and cut strips 1in longer than this measurement.
Step 5: Ends
Fold the ends in place before sewing in position and stitching to the back as before.