How to Make Cathedral Ceiling Curtains

Measure the length of the cathedral window, from the top of the window to the floor, for full curtains, or from the window underneath the arch window for partial curtains, and take width of your cathedral window at its widest point. Measure out two panels of fabric that are twice the width as your window at its widest and 10 inches longer. Cut out the fabric.

Fold over the side hems 1/2-inch on the underside of the fabric. Iron the hem flat. Fold the hem over again by 1/2 and iron it flat again. Pin the hem in place. Sew the side hems with a 1/8-inch seam using straight stitch on normal tension.

Fold the bottom hem by 1 inch and iron it flat toward the underside of the fabric. Fold the hem up another 4 to 5 inches and iron it flat. Pin in place and sew using straight stitch on normal tension and a 1/8-inch seam.

Fold the top hem over by 1/2-inch and iron it flat. Turn the hem over again by 2 to 3 inches and iron it flat. Pin in place and sew using a straight stitch and normal tension with a with a 2- to 3-inch seam.

Slide the finished panels onto the cathedral window’s curtain rod and place the rod on the curtain hardware. Adjust the curtains to your liking.