These 3 car garage plans offer storage on the upper level accessed by either a pull down stair or code compliant staircase. Some offer living space with 2-3 bedrooms on the upper level. The 3 car garage plans offer car and recreational vehicle storage on the ground level with extra storage or living space on the upper level. These are perfect for small building lots that don’t allow for an attached house. Some plans even offer double height bays for lifts.