What is the minimum clear height of the dwelling egress door from the top of the threshold to the bottom of the stop?

What is the minimum clear height of the dwelling egress door from the top of the threshold to the bottom of the stop?

• A. 80 inches
• B. 72 inches
• C. 84 inches
• D. 78 inches

Answer: (D)

Minimum clear height for a dwelling egress door is defined as the vertical distance from the top of the threshold to the bottom of the door stop. The minimum required value is 78 inches. This height provides enough headroom for most occupants to pass through the exit comfortably and safely, even when carrying objects or in an emergency, while aligning with standard door-frame construction. Other heights listed are either taller than the minimum (80, 84 inches) or shorter than what the code allows for an egress door (72 inches), so they don’t meet the requirement. The 78-inch measurement is the specific threshold that codes set to ensure a practical, universal clearance.

Minimum clear height for a dwelling egress door is defined as the vertical distance from the top of the threshold to the bottom of the door stop. The minimum required value is 78 inches. This height provides enough headroom for most occupants to pass through the exit comfortably and safely, even when carrying objects or in an emergency, while aligning with standard door-frame construction.

Other heights listed are either taller than the minimum (80, 84 inches) or shorter than what the code allows for an egress door (72 inches), so they don’t meet the requirement. The 78-inch measurement is the specific threshold that codes set to ensure a practical, universal clearance.