Sliding glass doors are large, framed panels of glass that slide open and closed on a track. They are commonly used to connect indoor spaces with outdoor areas, such as patios or gardens. These doors allow natural light to enter a room while providing a clear view of the outside. Typically made of tempered glass for safety, sliding glass doors are energy-efficient and can enhance the aesthetic appeal of a home. They come in various styles and sizes, making them suitable for different architectural designs. Proper maintenance, such as cleaning the tracks, ensures smooth operation and longevity.