4 inches. For a non-reinforced pavement, a thickness of four inches is standard for passenger car driveways. However, for 5 or 6 inches thickness, reinforcement is necessary, and such breadth works well for heavier vehicles.
4 inches. For a non-reinforced pavement, a thickness of four inches is standard for passenger car driveways. However, for 5 or 6 inches thickness, reinforcement is necessary, and such breadth works well for heavier vehicles.