Opinion: Garage slope

Subject:

Garage slope

Code:

2000 IRC Sections 309.3 and 309.4

Submitted By:

AMBO Uniformity Committee

Approved By:

Thomas R. Joachim, State Building Official

Issue Date:

December 2003

Question:

How much slope is required for garage and carport floors

Answer:

IRC 309.3 states "The area of floor used for parking of automobiles or other vehicles shall be sloped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway."

Committee comments:

No specific slope is required