What Size Storage for a Car?
A standard car needs a 10x20 storage unit (200 sq ft) minimum. Compact cars may fit in 10x15, while trucks and SUVs need 10x20 or larger. Motorcycles typically fit in a 5x10 unit.
Key Takeaways
- A 10x20 unit (20 feet deep, 10 feet wide) accommodates most cars with room to open doors and walk around.
- Classic cars should use climate-controlled storage to prevent rust and interior damage.
- Check storage facility rules—some don't allow vehicles or require separate vehicle storage.
Explanation
A 10x20 unit (20 feet deep, 10 feet wide) accommodates most cars with room to open doors and walk around. This is essentially a single-car garage without the height for a second level.
Compact cars (Honda Civic, Toyota Corolla) are about 15 feet long and may fit in a 10x15 with minimal clearance. Full-size sedans, SUVs, and trucks should use 10x20 minimum.
Consider what else you're storing. If you need to access items around the car or store furniture alongside, you may need 10x25 or 10x30. Some facilities offer dedicated vehicle storage with larger bays.
Before storing a vehicle long-term (more than 30 days), prepare it properly to avoid costly damage. Fill the gas tank and add a fuel stabilizer to prevent ethanol from absorbing moisture and corroding fuel lines. Inflate tires to the maximum recommended PSI printed on the tire sidewall, since tires slowly lose 1-2 PSI per month and can develop flat spots if they sit underinflated. Disconnect the negative battery terminal or connect a battery maintainer (trickle charger) to prevent a dead battery.
Storage unit costs for vehicle-sized spaces vary widely by location. A 10x20 indoor unit typically runs $150-300 per month in suburban areas and $250-500 in major cities. Outdoor covered parking spots cost 30-50% less but offer minimal protection from weather. Enclosed climate-controlled units cost 20-40% more than standard indoor units but maintain temperatures between 55-80°F and humidity below 50%, which prevents mold growth on upholstery and rust on exposed metal.
Things to Know
- Classic cars should use climate-controlled storage to prevent rust and interior damage.
- Check storage facility rules—some don't allow vehicles or require separate vehicle storage.
- Drain fluids appropriately and use a car cover for long-term storage.
- Measure your vehicle's exact length, width (with mirrors), and height before renting a unit. Many storage unit doors are only 8 feet tall, which may not clear a lifted truck or SUV with a roof rack. Bring a tape measure to the facility and test the door clearance before signing a lease.