All of Hart's Design drawings have been developed for a professional builder. Hart's Design can not be held responsible for the skill level, or lack there-of, of the builder. These drawings were developed for permit application, therefore you must check with your local building professional or engineer to determine what your local official requires. Hart's Design can alter or adjust the drawings accordingly at a per hour rate. Please understand that every location and jurisdiction is different and therefore the requirements will change based on your location.