Answer :
Final answer:
The minimum size for an attic access opening is 22 inches by 30 inches, as commonly guided by the International Residential Code (IRC). This size accommodates safe individual access and allows the passage of items or tools to and from the attic. Thus Option 2 is Correct.
Explanation:
The minimum size for an attic access opening is 22 inches by 30 inches. This size is typically considered the standard to allow for safe and reasonable access for individuals, as well as the passage of storage items and tools that may be needed in the space. The building code that specifies this requirement may vary by region; however, the International Residential Code (IRC) often serves as a standard reference.
The IRC states that if the attic has limited storage or no storage and contains a furnace, the access opening must be large enough to allow removal of the largest appliance, but not less than 30 inches by 30 inches. Additionally, if the attic is used for storage, the opening should not be less than 22 inches by 30 inches.
