The flat-room section was further divided into two sections, the foyer on the west side, and a suite of rooms to the east. When the attic was used for ordinance work, they were used as a pantry, wardrobe and storage rooms. The area was illuminated by six windows along the foyer's west wall. Outside windows also provided light along the north and south sides. The roof had four octagonal skylight windows to provide light to the interior rooms, in addition to a twenty-foot arched window.