Which statement about floor load ratings is true?

• A. The floor load rating must be posted
• B. The floor load rating is optional
• C. The floor load rating applies only to exterior floors
• D. The floor load rating changes daily

Answer: (A)

Floor load ratings indicate the maximum weight a specific area of a floor can safely bear. Because that capacity is limited, it’s essential to communicate it clearly to workers. Posting the floor load rating in the area where it applies ensures everyone knows how much weight can be placed there and helps prevent overloading, which could lead to floor damage or failure. This requirement is not optional, and it isn’t limited to exterior floors—the rating applies wherever specified. It also isn’t something that changes daily, since the rating reflects the floor’s structural capacity, not daily conditions. So posting the floor load rating is the best-supported practice and the correct statement.