The main priority in having a properly built driveway is the concrete thickness. You will want to consider the type of vehicles you will be parking upon that drive before you decide the thickness.If you will be parking normal cars, you can go with a four inch concrete thickness.If you have plans to park a heavy truck, camper, or a boat on your driveway, it is recommended to pour a five inch thick driveway.e just gave you the thickness that you will want, but you may be wondering how wide you should make your driveway? Single driveways are eight feet wide. Many people add several feet to that and go with a ten or even twelve foot wide driveway. This will depend on the space you have to work with.