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When building an RV garage, you’ll need to aim for enough clearance to move comfortably around the rig. While most RVs are roughly eight feet wide, give yourself a few extra feet on each side for safe maneuvering. A 14-foot interior height, a 12-foot-plus door width, and lengths of 40 to 45 feet cover most models. If the lot allows, consider sizing up to accommodate storage shelves or a small workshop in the future.

An RV garage requires a door that exceeds the height of your vehicle’s highest rooftop feature. You must select a door that stands 12 to 14 feet tall, ensuring it provides full clearance for air conditioning units, antennas, and satellite systems. This door height guarantees that your RV moves in and out without any risk of contact or damage, protecting both the vehicle and the structure.

Plan on six to 10 weeks for a typical detached RV garage and 12 to 24 weeks for an attached multi-car version. Your exact timeline hinges on design complexity, permit approvals, material lead times, and the builder’s schedule. Ask your contractor for a detailed calendar up front so you know when to expect each milestone—from the foundation pour to the final inspection.