Here are some guidelines to help you get a “quick estimate” on what size storage unit you might need.
5 x 10 This size is about the size of a large walk-in closet and can contain, for example, a couch and a chair, bedroom set, and small items and boxes.
10×10 This size is about the size of a small bedroom and will hold the furniture (excluding major appliances) from a one-bedroom apartment.
10×15 This size could hold the contents of a two-bedroom apartment or a small car.
10×20 This size is about the size of a standard one-car garage. It’s big enough for furniture, appliances, and personal items from a two-bedroom house or a car or truck.
10×30 This size could hold the contents of a three-bedroom house or provide vehicle storage with plenty of storage space left over for the contents of one or two small bedrooms.