Originally Posted by Puddinpop
You could look at fashionfabricsclub.com and look at their drapery material. Some people use liner fabric, also. Curtain rod type shouldn't be too hard, just have a big area to cut material. The pinch pleat kind would be a little more difficult, I would think.
Actually the pinch pleat kind is easy. You buy a tape that has little pockets at intervals, sew it to the top of your fabric, and stick special hooks into each pocket. Presto -- pinch pleats.
Linings are not so easy, in my experience. You have to cut and sew them very precisely to match the curtain fabric or the whole thing hangs funny.
If you want lots of insulation, make two separate layers of curtains -- something lightweight next to the window and a heavy drapery on top of that.
Since you're in Manhattan, take the train to Zarin's on the Lower East Side. They have thousands of tapestry and velvet upholstery fabrics at deep discounts. Great for heavy curtains. The salespeople are super-nice about giving advice to do-it-yourselfers.