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

• A. Scaffold
• B. Floor
• C. Cat-walk
• D. Access way

Answer: (B)

When we refer to the surface inside a building that people stand and work on, that surface is the floor. It’s a permanent, built-in horizontal plane that supports people and loads and is part of the structure, typically supported by joists and framing. Scaffolds are temporary platforms used during construction or repairs, not part of the permanent structure. A cat-walk is a narrow elevated walkway used to access areas, not the main working surface. An access way is a route to reach spaces, such as stairs or corridors, and isn’t the actual platform people stand on. So the floor is the term that best fits this description.