Our 2 Car GarageHouse Plan collection includes plans that have enough space for two cars to comfortably fit inside. we have plans that have attached garages as well as detached garage building plans. The square footage of the garage space is not included in the finished square footage of our house plans. Common garage sizes are 20x20, 20x22, 24x24, and 24x30. Attached and Detached garagesfollow the styles of the home including traditional, craftsman, modern, etc.