For a commercial deck, what is the minimum guardrail height above the finished floor?

For a commercial deck, what is the minimum guardrail height above the finished floor?

• A. 38 inches
• B. 40 inches
• C. 42 inches
• D. 36 inches

Answer: (C)

Guardrails around a commercial deck must be at least 42 inches tall above the finished floor. This height provides adequate fall protection for occupants in commercial settings and aligns with the higher safety standards in building codes for non-residential structures. Residential decks are typically allowed to be 36 inches, which is why that lower height isn’t appropriate for commercial use. The 42-inch requirement helps ensure a safer edge even when people lean or carry objects near the guard.

Guardrails around a commercial deck must be at least 42 inches tall above the finished floor. This height provides adequate fall protection for occupants in commercial settings and aligns with the higher safety standards in building codes for non-residential structures. Residential decks are typically allowed to be 36 inches, which is why that lower height isn’t appropriate for commercial use. The 42-inch requirement helps ensure a safer edge even when people lean or carry objects near the guard.