A horizontal plane within a structure upon which people stand and work is a

A horizontal plane within a structure upon which people stand and work is a

• A. Floor
• B. Ceiling
• C. Roof
• D. Deck

Answer: (A)

Inside a building, the horizontal surface that people stand and work on is the floor. It serves as the interior base of each level, supporting occupants and loads and separating the different stories. A ceiling is the upper interior surface of a room, not the surface people stand on. The roof is the exterior top covering of the structure, and a deck is typically an exterior raised platform or outdoor level. So the term that best fits the description of the internal horizontal plane used for occupancy is floor.

Inside a building, the horizontal surface that people stand and work on is the floor. It serves as the interior base of each level, supporting occupants and loads and separating the different stories. A ceiling is the upper interior surface of a room, not the surface people stand on. The roof is the exterior top covering of the structure, and a deck is typically an exterior raised platform or outdoor level. So the term that best fits the description of the internal horizontal plane used for occupancy is floor.