You can install a tray ceiling, either inverted or recessed, in either a one- or two-story home. There is always enough room to do so. If you are remodeling, you'll need to tear out the area where you want the tray to be and construct a wooden or metal frame for the tray to be drywalled. There are also tray ceiling kits that make adding a tray relatively easy and cost-effective.
With ceilings of 10 feet or more in most of today's homes and the use of recessed lighting, the light you need over your dining and work areas gets lost. These areas can benefit from an inverted tray treatment by effectively lowering the height of the ceiling over them to provide better lighting and add interest and coziness to the areas.
If you've ever seen a lighting fixture hanging from a very long chain over a dining room table, you know how awkward and unattractive that can be. By adding an inverted tray into a recessed tray ceiling, you add drama and class to your formal dining room. Indirect lighting can be placed inside the molding of the recessed tray, and your special chandelier can hang gracefully from the inverted tray over your table.
The master bedroom should be masterful, elegant, serene and seductive, all at once. A plain expanse of ceiling conveys none of these. Adding a tray ceiling produces an entirely different ambiance. With an inverted tray ceiling inside a recessed or cove ceiling you introduce very interesting light, sound and decorative possibilities.