2 12 Car Garage Square Footage. Up to 1% cash back garage. A two and a half car garage will cost between $20,800 and $52,000, and are between 520 and 744 square feet.

If you want to keep your vehicle looking nice and want extra space for other things, a bit wider and deeper will go a. Make sure you account for the space you need to open the back liftgate with the garage door closed for things like taking in groceries, etc. Is a 20×20 garage big enough?