InterNACHI How to Inspect Attic Ventilation and Interior Practice Test

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What is the minimum height requirement for a horizontal guard?

30 inches

32 inches

36 inches

The minimum height requirement for a horizontal guard is set at 36 inches to ensure safety and prevent falls from elevated surfaces. This standard is designed to protect individuals, particularly in areas where there is a potential for falling, such as balconies, decks, or stairways. A guardrail that is 36 inches high provides sufficient protection by acting as a barrier that minimizes the risk of accidental slips or trips over the edge. The 36-inch height is widely adopted in building codes and safety regulations to create a consistent standard that helps ensure safety across various structures.

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40 inches

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