High Quality Content by WIKIPEDIA articles! The Grand Staircase is the chief stairway connecting the State Floor and the Second Floor of the White House, the official home of the president of the United States. The stairway is primarily used for a ceremony called the Presidential Entrance March. The present Grand Staircase, the fourth staircase occupying the same general space, was completed in 1952 as a part of the Truman White House reconstruction. The Grand Staircase is entered on the State Floor from the Entrance Hall.