The Oval Office is the official office of the President of the United States, in the West Wing of the White House. George Washington specified a room's oval shape so during meetings, he could look into everyone's eyes. Originally, Washington wanted all the rooms in the White House oval but soon realized such a design was impractical.
White House Oval Office
Long Axis: 35' 10" (10.9m)
Short Axis: 29' (8.8m)
Height: 18' 6" (5.6m)
Line of Rise: 16' 7" (5.0m) the point at which the ceiling starts to arch.