How to Make piping for the cushion edge
5. Pin the piping to the front cushion panel by matching up the raw edges with right sides together. Where the piping overlaps, trim the cord back so that the ends meet and wrap the trimmed cord with the folded end of the fabric. Pin in place.
6. Use your zipper foot to straight stitch around the edge of the piping. When you get to the corners, lower the needle and lift the foot to turn the cushion panel making it easier to sew in a curve. Snip into the piping cord’s seam allowance to help the piping cord lie flat.
Inserting concealed zip into cushion cover