is no balcony on the 38th floor, and the 39th and 40th floors have dark geometric patterns without any windows. Features The Fuller Building had a rentable area of about when it was completed. According to the New York City Department of City Planning and building owner Vornado Realty Trust, the building has a gross floor area of approximately . The third through 19th floors typically contain an area of , while the 20th through 40th stories are much smaller, with an area of . Ceiling heights range from , while the floors can carry loads of . The building is constructed with a steel superstructure. The steel structure contains wind bracing to minimize movement due to wind. When the Fuller Building was completed, it contained a then-novel vertical fire alarm system, with direct lines to the New York City Fire Department at every other floor, as well as tanks and standpipes throughout the height of the building. Lobby The lobby is T-shaped in plan, with marble, bronze, and mosaic decorations. The main entrance hall leads north from 57th Street to the elevator lobby, which leads east from the Madison Avenue entrance. Just inside either entrance are small vestibules with doors leading to the main lobby. The 57th Street vestibule's wall consists of light tan marble, with horizontal black bands on the lowest sections of the walls. One light marble panel on each wall is flanked by two narrower, darker marble pilasters, which are flush with the rest of the wall. At the top of each dark marble panel are fret designs intended to resemble the capitals of a column. The floors contain stylized mosaics inlaid with the letter "F", as well as decorative borders. The Madison Avenue vestibule is similar in design, except it has three doors to the lobby, whereas the 57th Street vestibule has four. Additionally, a stair to the basement is on the northern side of the Madison Avenue lobby. The main lobby walls have similar designs to the vestibules, except the dark marble pilasters are placed in regular intervals along the light-tan marble surface. A black frieze with a fret pattern runs atop the entirety of all the walls. The floor of the main lobby consists of gray, black, white, and tan mosaic tiles with chevron-patterned borders and geometric patterns. The center of the floor contains three roundels depicting notable structures in the Fuller Construction