A neighbor of mine had a drafty patio door. She used pre-quilted material and an old sheet to make a door curtain. She didn't make it the size you would a regular curtain, but it did overlap the door about 3 inches to seal out the draft. She made it long enough to reach the floor and hung it on the curtain rod she hangs her summer sheer curtains on. Be sure the rod will be sturdy enough to hold the material. They didn't use the door in the winter time as you probably would. Hope this helps.