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

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

• A. 36
• B. 38
• C. 40
• D. 42

Answer: (D)

In commercial construction, guardrails must be tall enough to effectively prevent falls, so the standard height is a minimum of 42 inches from the finished deck surface to the top of the rail. This height is specified by codes used for commercial buildings and aligns with safety practices for restaurants and similar occupancies. The other numbers are below this required minimum, so they don’t meet the code for a commercial deck.

In commercial construction, guardrails must be tall enough to effectively prevent falls, so the standard height is a minimum of 42 inches from the finished deck surface to the top of the rail. This height is specified by codes used for commercial buildings and aligns with safety practices for restaurants and similar occupancies. The other numbers are below this required minimum, so they don’t meet the code for a commercial deck.