What is the minimum guardrail height above the finished deck height for a restaurant deck or any commercial building?

What is the minimum guardrail height above the finished deck height for a restaurant deck or any commercial building?

• A. 40
• B. 36
• C. 42
• D. 38

Answer: (C)

The required guardrail height for a restaurant deck or any commercial building is 42 inches above the finished deck height. In commercial spaces used by the public, guardrails must be taller to provide adequate fall protection, which is why the minimum is 42 inches, unlike residential decks that may require only 36 inches. The height is measured vertically from the finished walking surface to the top of the guardrail. So, 42 inches is the correct minimum.

The required guardrail height for a restaurant deck or any commercial building is 42 inches above the finished deck height. In commercial spaces used by the public, guardrails must be taller to provide adequate fall protection, which is why the minimum is 42 inches, unlike residential decks that may require only 36 inches. The height is measured vertically from the finished walking surface to the top of the guardrail. So, 42 inches is the correct minimum.