I was given this delightful vintage fabric by a friend and I wanted to make a cushion cover but needed to use the minimum amount of fabric possible. This cushion cover with mitred corners is the result. I began with an 11″ panel and I wanted to make a cushion cover 14″ square. Putting the fabric panel on ivory brocade showed me that the brocade would make a good border for the cushion cover.
Making the cushion cover front
In order to end up with a 14″ panel, I needed to add a 2″ strip all round. After seam allowances, that would give me an extra 1.1/2″ all round. Rather than just use the brocade fo the border, I decided to put a 2″ square of the original fabric in each border. Sew a 6.3/4″ strip of brocade to either side of the 2″ square.
With a pin mark the centre point of both the strip and the fabric panel and then pin the strip to the panel with right sides together. Begin sewing 1/4″ from the corner and finish sewing 1/4″ from the other corner.
Make up a second border strip and square and sew this to the next edge of the fabric panel. Take care not to catch the first strip in your stitching and again begin and finish sewing 1/4″ from the corners.
Make the mitred corners
Fold the panel in half along the diagonal, matching up the two border strips in a straight line and with their ends together. Place your ruler along the fold of the panel and mark a line across the border strip.
Pin either side of the marked line and stitch along the line, stopping at the stitching line that joins the panel to the border. Cut the excess fabric triangle.
This opens out to give a lovely neat mitred corner to your cushion cover. Continue with the two remaining border strips and mitre the other three corners.
Make the back of the cushion cover
For making the back of the cushion cover, I cut two panels of brocade 14″ by 10″. This gives a 6″ overlap for the envelope opening at the back of the cushion. Turn under a small hem along one 14″ edge of each panel. With right sides together place the backing panels on the cushion cover front. They will overlap across the middle of the cushion front.
Sew all the way round the square with straight stitch and then clip the corners and zigzag all round the raw edges to prevent fraying.
Turn the cushion cover right side out through the envelope opening in the back and fill with a cushion pad.