Dining Room
A variant of the sliding glass door is what some manufacturers term the French slider. In many ways this door incorporates the advantages of a sliding glass door with the look of a French door. Unlike the two-panel configuration of the typical sliding glass door, the French slider has four panels. The two outer panels are fixed in place; the two inner panels operate. When closed, the two operable panels butt into each other, resting in the same plane, creating the look of a hinged door. Another advantage to these doors is the opening can be even wider than a regular sliding glass door. At widths of 10, 12 and 16 feet, these doors can create a wall of glass while also allowing for a lot of natural ventilation. Whether it's the standard sliding glass door or the French slider, an important design consideration is the track system. As in the hinged doors, these tracks can project up an inch or more and are typically 5 to 6 inches wide. The large track is something you'll want to deal with by setting it down lower or specifying a lower profile system as some manufacturers can provide.
Another type of sliding glass door is the telescoping patio door. This door consists of several — three or more — panels that slide past each other. The great advantage of a telescoping door is the ability to get a really wide opening that can eliminate the barrier between indoors and out. As with the sliding glass doors, telescoping doors are sympathetic with a contemporary aesthetic but not so much with a traditional design. It's just a function of the large, unobstructed glass panels and staggered configuration that yields a modern look. Two especially nice features of this style: You can have the door open just a little and have it open at either side, as there isn't a fixed panel like the one in the standard two-panel sliding glass door. Keep in mind the track can be really wide. A four-panel door will have four separate parallel tracks that can encroach into the home a bit — especially when a screen system is added. With the glass panels and the screen panels, a four-panel door can have a track system 18 inches wide
Sunlight let in to other space, but behind office door for noise control
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