The Japanese may actually be the first people to use what we refer to today as sliding closet doors. These doors essentially follow the commonly accepted definition of a door that moves sideways or in an up and down motion. They still serve the same purpose as they did then, to manage space, provide ease of use and highlight or disguise internal or external features of a structure.
Closet door manufactures are becoming more in tune with the desires of the homeowner. Glass closet sliding doors can be controlled with top mounted hardware to help the user control track and hardware problems that seem to be a major concern with floor track mounted systems. The building industry has embraced this concept to the point that entire home designs are built around these concepts.
Interiors of our homes are always susceptible to unwanted, heat or cold or other weather that we prefer to control. With the choices available, you can easily match the windows, shutters, and exterior doors to achieve those objectives.