Double pinch-pleat curtains are fuller than regular curtains, making them an elegant addition to any room. Pinch-pleat curtains normally hang past the window casing and sometimes all the way to the floor. You can make your own custom double pinch-pleat curtains using a special kind of tape. Use a medium to heavyweight fabric to make the pleats in your curtains more pronounced.
Measure the length of your windows down to where you want the curtains to hang. Add four inches to allow for the top and bottom hems. Measure the width of your window, double that measurement and add 25 cm (10 inches).
Cut both the curtain and the lining fabric to the necessary lengths and widths.
Lay one panel of your drapery fabric, right side up, on a large, flat surface. Lay a lining piece on top of that with the right side down. Use pins to hold the fabric in place and sew around both sides and the bottom of the curtain.
Turn the curtain right side out and iron the seams.
Fold in the raw edges at the top edge of your curtain 5 cm (2 inches). Hold the fabric in place with pins and sew straight across to seal the seam.
Purchase a pleat tape that has a 2-to-1 ratio to make the double pinch pleats. Read through the manufacturer’s instructions for using the pleat tape.
Cut a length of the pleat tape that measures the same as the width of your curtain panel. Pin the tape to the back of the curtain panel 10 cm (4 inches) down from the top edge and sew all the way across.
Pull the threads of the pleat tape to form the double pinch pleats. Tie off the ends of the threads to secure the pleats in place temporarily.
Work on one double pinch pleat at a time and use a needle and thread to hand sew each pinch pleat in place permanently. Make sure to stick the needle through all the layers of each double pinch pleat. Work from the back of the curtain so you will not see the stitches on the finished pinch pleat curtain.
Use the width measurement to cut one panel of fabric for your pinch pleat curtains. Remember that most windows require two panels. If you do not want to be able to see the seam from sewing the pinch pleat tape onto the curtain, use a gathering stitch and then remove the gathering threads once you hand-sew the double pinch pleats in place.