When an architect or interior designer examines the Reflected Ceiling Plan, they can see the structural layout of the space and enter the lighting requirements for each room. They'll see the electrical plans to see how the dimmers, electrical and telecom connections and panel boards are laid out. Although the floor plan and reflected ceiling plan have the same orientation, they serve different purposes. In its most basic form, the floor plan shows the placement of various features on the floor, like doors and windows, stairwells, and even furniture.