designed for normal residential vehicle traffic. Use of your driveway for nonresidential purposes, such as trucks and/or delivery vehicles, may result in crack development. We would recommend 6" or greater.
We will only warranty our workmanship and quality of materials at the time of installation. Concrete does crack and chip. We do not like it either but in most cases, it is bound to happen. We do everything we can to control cracking, by installing control joints or saw cuts, but there is NO GUARANTEE that concrete will not crack in other places.