Place one outer panel and one lining right sides together. Make sure that they are both oriented the correct way with the bottom hems together.

Pin the panels together along the long sides and the top. Do not pin the bottom. The bottom of this curtain will stay open. This helps with the drape and flow.

Sew the panels along all three sides with a 1/2-inch seam allowance. Backstitch at the beginning and end of each seam.

Zig zag stitch down the very edge of each of the long sides of the curtain to finish the seam neatly. You don't have to zig zag the top seam.

Snip off the top two corners.

Turn the whole curtain right side out (make sure to poke the top two corners out so they are pointy.)

Press the seam. Pin the outer panel to the lining around the three sewn edges.

Top stitch around all three sides.

Repeat all steps for second curtain.