Exterior The Hilton Crystal City Hotel at Ronald Reagan Washington National Airport is located within walking distance to the metro, shopping, restaurants, and businesses, and within minutes of downtown Washington D.C.
A bookcase, or bookshelf, is a piece of furniture, almost always with horizontal shelves, used to store books. Bookcases are used in private homes, public and university libraries, offices and bookstores.
You might see this type of bookshelf in mansions or museums. Bookshelf width is typically no more than 12 inches. If the space is limited, the shelf can be reduced to 9 inches. Single bookcase units with two sides, top and bottom should be no wider than 36 inches without a center support. Single bookcase shelves installed on a wall should have supports no further apart than 32 inches due to 16-inch stud spacing commonly used on homes.