When you have too many belongings, you may want to free up space in your home by renting a storage unit. When you're ready to rent a unit, you need to decide if you want an indoor or outdoor facility. Each has their good points and downsides. Here's a look at the benefits of each type. Things You May Like About Outdoor Storage The main benefit of an outdoor unit is you can drive up to it and park in front of the overhead door.