Closet design ideas include not only the insides of a closet but the outside too. Depending on the room, you can have a mirror or some design on the closet door which goes with the rest of the area. A closet door can even be made to look like something else so that it isn't even noticeable.
You can see in the picture below that the closet door has a unique look full of design which adds color to the room. Additionally, the doors hide what is essentially a closet office which make great use of the space for something that is needed.
Putting mirrors on your sliding closet doors is one of the more popular ideas and this does a couple things. First, it makes the room look bigger because of the reflection and second, it adds some design value to the room. You probably would only want to try this with a room that already looks nice because you wouldn't want a reflection of a room that is a mess.
Closed door ideas are anything you want to make them and creativity is the name of the game. You can have doors made out of all sorts of wood and faux wood such as the bamboo closet doors seen below. If there is a material you especially like, you will probably be able to find a store that will be able to make custom doors for you. Although it may be expensive, little additions like these doors we see pictured can add value to your home in terms of your enjoyment of it. Your closet space should be put to use in the best possible way and the doors are no exception as they can be a source of great style.