A garage is very important for the life and safety of cars and other vehicles. Moreover, it adds aesthetic value to the house. There are several car garage design ideas available. One example of car garage design ideas is 3 car garage design. In 3 car garage design, there several ways that can do to achieve. the first step to creating your own 3 car garage deciding on the location. Then after deciding the location, you will need to decide on a size for your structure. The next step to creating your 3 car garage is to choose a foundation material. For the exterior structure of your 3 car garage plan, you will want to start with layering your bottom plates of treated lumber, using sill foam between the concrete and the bottom plates. The walls should be built using 2 X 4 inch plants, in sections, with spaces for the windows and doors, using studs to secure plates and sections.