You will need
Before you start
* These instructions assume a 30cm by 60cm cushion pad - you will need to amend the measurements if your pad is a different size.
* If you want to pattern match on a fabric with a large pattern repeat, you may need to make up the cover from more than one piece, in which case add 2.5cm for any additional seams.
Step 1) Cut a 92cm by 67cm rectangle of fabric. Fold under 2cm and then 3cm along each short edge and hem (see main illustration).
Step 2) Lay out the fabric right side up and fold the two hemmed edges to the centre so that they overlap by 20cm. Stitch the sides taking 2.5cm seams (see illustration below).
Step 3) Trim and clip seam allowances, turn through the envelope opening and press.
Step 4) Stitch one button centrally 1cm from the top hemmed edge of the envelope opening and another button equally spaced either side.
There's no need to stitch buttonholes as the overlap on the envelope is deep enough to hold its shape without gaping. The buttons are purely decorative. Insert cushion pad through the opening - the fit will be tight and you'll need to work the pad into the corners for a snug fit.