The concrete driveway width plays a big part in determining its lifespan. It should be wide enough to prevent vehicles from driving off the edges as this causes the material to crack and break off. We recommend a minimum width of 20 Ft. This will allow two cars to park in the driveway side by side. If possible try to go with a width of at least 24 Ft. This will allow both cars plenty of room to open their doors simultaneously.