A ramada or any portion thereof shall have a clearance of not less than eighteen inches (18") in a vertical direction and not less than six inches (6") in a horizontal direction from a trailer coach. Crossbraces or structural ties shall not obstruct movement of any trailer coach. The supporting structural members of a ramada shall not extend more than twelve feet (12') horizontally beyond either side of a trailer coach nor shall any roof or eave projection extend more than thirty inches (30") beyond the supporting structural members. (Ord. 14 §6(4)(part), 1959)