Curtains are also commonly hung on doors. Choosing a door curtain is tricky in that the size of the door can vary a lot. French doors do not come in standard sizes. It is therefore important that you have both horizontal and vertical dimensions. This is the first step in avoiding costly mistakes.

Other than being anal about the size of the door, there should be nothing more to worry about. As long as you know exactly why you want curtains on your door all other decisions will follow. The kind of fabric will depend on whether you want partial light or not. The design of the material will be chosen according to what will enhance the existing home décor. Go out and have a blast shopping for what will make you happy.