A Guide on Self Storage Sizes


The self storage industry is one of the fastest-growing segments in our economy today.

People have many reasons for investing in self storage units, including short-term storage of their belongings during a move, organizing business inventory, or keeping a vehicle safe during the off-season. Self storage sizes are as varied as the items people place in the spaces.

Suppose you are considering a self storage facility as a business or investment property. It’s essential to learn the various unit sizes and how they work within a self storage design. This article will outline the different sizes of storage spaces in a self storage business.

Self Storage Sizes Compared

One of the easiest ways to understand the different self storage unit sizes is to know each one’s capacity. Let’s group the various sizes as small, medium, large, and extra-large.

Small Self Storage Units

Two common small sized units are the 5′ x 5′ and the 5′ x 10′. A standard closet filled with clothes and other belongings will typically fit in a 5′ x 5′ storage unit. A 5′ x 10′ unit will usually hold as much as a walk-in closet.

Medium Self Storage Units

Medium-sized units will usually hold everything that might be in a one or two-bedroom apartment. A 5′ x 15′ storage unit is large enough to hold everything from a small apartment or a large bedroom. A 10′ x 10′ unit is big enough to store beds, furniture, and clothing from up to three rooms.

Large Self Storage Units

If you are storing the contents of a large apartment or a small-to-medium-size house, you need a large size unit. A 10′ x 15′ unit will hold up to four rooms worth of items. 10’x 20′ and 10′ x 25′ units will hold five and six rooms, respectively.

Extra-Large Storage Units

Extra-large storage units may be open or enclosed and are ideal for storing vehicles. A 20′ unit will hold most cars, a 35′ unit will accommodate most RVs or boats, and a 50′ unit is the right size for very large RVs, boats, or commercial vehicles.

Creating the Right Mix of Storage Units

One of the keys to managing a successful self storage business is having the right mix of unit sizes. You want to have flexible options for your customers, but you also want to maximize your available real estate.

Working with an architect who specializes in space optimization is important. An architect can help you determine which size units and how many can be included in your facility.

Sizing Up the Opportunity

Self storage is a growing and dynamic industry. Many people rely on self storage units for many reasons, and the business can be very profitable for owners and investors.

It’s essential to understand the various self storage sizes people commonly use, how many of each you can provide, and how to create the right mix of storage units in your facility.

If you’re interested in self storage investing or starting your own self storage business, contact us today! We have the industry knowledge and expertise to help you succeed.

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