Unless you live or works in a warehouse, exposed metal french doors are not usually most attractive doors to see in a room or building. A good way for them is design with curtains or curtain that can be installed in a variety of ways. Some are professional, some are homemade and many are intended for temporary as most metal doors covered by curtains for both aesthetic and privacy reasons. Metal or steel entry doors also look more attractive if decorated with curtains.
main area where metal French doors should be covered by curtains in a variety of theaters, often classical or old film or stage theaters, where sound and light as efficiently as possible should be blocked at entrance of metal door. Thick, heavy curtains are used for just this purpose, hung from ceiling plane cable or in another safe way and draped on ground. If curtains are often floor to ceiling, she twenty to thirty feet may be long (if not larger) and are usually made of heavy fabrics like cotton and felt that you can effectively block sound and light simultaneously. They often overlap for this purpose, and inputs of metal door of room.
Once you have decided what kind of curtains to hang above metal French doors itself, pattern picking most enjoyable and sometimes most challenging part. Remember, this is related to an input, so it is important to think about how many people are going to see these curtains. Should they be hospitable or hidden? If a covered window, they should be thick enough so that people outside cannot see at all, yet large enough for you to see out. Because door you have curtain hanging on metal, make sure color and design to complement heavier industrial style. Then, choose a few different styles and colors to see what works creatively.