10x15 vs 10x20 Storage Size Comparison

How to Choose Between a 10x15 vs 10x20 Storage Unit

While 10x15 and 10x20 storage units can both hold a variety of items, the difference in size greatly impacts what you can store. A 10x15 storage unit gives you 150 square feet and 1,200 cubic feet of space, while a 10x20 unit has 200 square feet and 1,600 cubic feet of storage space. If you aren't sure which option is right for your needs, explore the differences below to learn more about dimensions, average prices, and examples of what can be stored in each unit size.

  • Comparable in size to a large bedroom or a standard one-car garage
  • Fits furniture, appliances, dining room sets, and more
  • Great during a move, renovation, or for business inventory

What’s the Difference Between a 10x15 & 10x20 Storage Unit?

While both sizes serve as a medium-sized storage solution, a 10x20 provides 50 additional square feet of storage space than a 10x15. A 10x15 storage unit is comparable in size to a large bedroom, while a 10x20 is closer to a one-car garage. Learn more about the difference between the two sizes and what you can store in them below.

10 foot by 15 foot storage unit

10x15

Dimensions: 10 feet wide by 15 feet long

Square Footage: 150 square feet

Cubic Feet (with an 8-foot ceiling): 1,200 cubic feet

Average Price: $161

Size Comparison: A large bedroom

What a 10x15 Can Hold: Several mattress sets, dressers, a washer and dryer, a refrigerator, two standard ovens, multiple couches, grills, and a substantial number of large moving boxes

Common Uses: Storage during a move or renovation, small vehicles like motorcycles and ATVs, lawn equipment, business storage

10 foot by 20 foot storage unit

10x20

Dimensions: 10 feet wide by 20 feet long

Square Footage: 200 square feet

Cubic Feet (with an 8-foot ceiling): 1,600 cubic feet

Average Price: $206

Size Comparison: A standard one-car garage

What a 10x20 Can Hold: 3-4 bedrooms worth of furniture and appliances, 100s of medium moving boxes, office furniture, multiple couches, and a refrigerator

Common Uses: Self storage while moving or doing home renovations, larger business inventory or heavy equipment, vehicle storage

What Typically Fits in a 10x15 vs 10x20 Storage Unit?

Though many of the same items can fit in both a 10x15 and 10x20 storage unit, a 10x20 storage unit will be able to hold additional and larger items. Here are some examples of items that can fit in each.

A table comparing what items fit in a 10x15 vs a 10x20 storage unit

Item compatibility is based on standard dimensions and is intended as a general guide only. Whether your items fit will depend on their actual measurements, quantity, and how they are arranged within the unit. We recommend measuring your items before selecting a unit size.

Which Size Offers Better Value?

As a medium-sized storage solution, a 10x15 unit is more affordable but comes with smaller dimensions and can hold fewer items than a large 10x20 unit. A 10x15 storage unit typically costs around $161 per month, while a 10x20 storage unit typically costs around $206 per month. With a difference of around $40 per month, or just over $480 per year, it may be worth upgrading if you need the extra storage space or want flexibility over time.

For the small additional cost, you get:

  • 50 more square feet

  • 400 more cubic feet

  • More room to navigate the unit while storing or accessing items

  • Space for a larger vehicle than a motorcycle or an ATV

The upgrade is worth it if you:

  • Want to store a compact car

  • Are storing items from a larger living space than a two-bedroom home

  • Have more than 150 boxes to store

  • Want better organizational options

The monthly pricing referenced above reflects national averages and is subject to change based on location, availability, and current promotions. For accurate, real-time pricing, please navigate to the facility page or call your nearest Extra Space Storage location.

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    Which Is Best for You: A 10x15 or 10x20 Storage Unit?

    Still unsure of which size you need? Learn more about the benefits and drawbacks of renting a 10x15 or 10x20 storage unit.

    A heap of boxes and a lamp light

    Moving Box Storage (Short-Term)

    • 10x15: If you have a gap while moving between homes, a 10x15 unit can hold 110-150 medium moving boxes for short-term storage.

    • 10x20: It makes sense to upgrade if you're storing 200-250 boxes, you have bulky items that don't neatly fit in boxes, or you're moving from a larger home.

    A graphic of 2 open storage units with an ATV in one unit and a car in the other.

    Vehicle Storage

    • 10x15: A 10x15 unit is a smart option if you need to store a small vehicle like a motorcycle or ATV, whether you're just clearing up space at home or needing seasonal protection.

    • 10x20: If you need to store a car, you'll need to upgrade to a 10x20. A larger unit also gives you more space to navigate around a smaller vehicle while accessing the unit.

    Storage unit multi-bedroom contents like ATV mattress, futon, desks, dresser, boxes, rugs, and other household items

    2-Bedroom to 3-4 Bedroom Home Move

    • 10x15: Can fit the contents of a two-bedroom home, including most furniture, appliances, and moving boxes, keeping everything in one place during your transition.

    • 10x20: Renting a 10x20 unit is a better fit for a 3-4 bedroom move, fitting more boxes, oversized furniture, and household belongings than a 10x15, as well as overflow from garages or storage areas.

    A picture of a green storage unit with some boxes and a person carrying more boxes inside

    Renovations

    • 10x15: A 10x15 unit can hold furniture, decor, carpet rolls and tiles, or tools during during a multi-room home renovation

    • 10x20: Upgrade to a 10x20 if you are renovating an entire floor or home, need extra space for tools and materials, or have lots of large furniture to protect.

    How to Choose the Right Storage Unit Size

    Tips for Choosing:

    • Do Inventory: Create a list of everything you plan to store, from furniture and appliances to boxes and smaller items.

    • Measure Before You Choose: Take note of the dimensions of larger items like couches, beds, appliances, and standard box sizes to make sure they will fit in the unit.

    • Map Out Your Layout: Use painter's tape to help you visualize your unit's layout and save time when moving in.

    • Account for Vertical Storage: Most storage units have 8-foot ceilings, so stacking boxes and items can help maximize vertical space. Select facilities may offer units with 10-foot ceilings.

    • Leave Room For Access: Leave walkways in your unit so you can easily access items.

    • Size Up if Needed: If you're unsure if your unit will be big enough, it's often worth it to size up rather than realizing too late that your unit is too small.

    Additional Considerations:

    • Accessibility: If you'll need frequent access to your belongings, consider a larger unit that allows for wider pathways and easier organization.

    • Climate control: For temperature-sensitive items like electronics, wood furniture, or artwork, climate-controlled storage can help prevent damage from swinging temperatures.

    • Drive-Up Access: If you're storing heavy furniture or bulky equipment, drive-up units make loading and unloading much easier.

    • Ceiling Height: Most storage units are 8 feet tall, which may be too short for some vehicles. Some units may have 10-foot ceilings that would better suit larger vehicles.

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    Why Rent with Extra Space Storage?

    • Reserve online, with options for same-day move-ins

    • Month-to-month lease flexibility

    • Easily switch unit sizes if your needs change

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    Find 10x15 or 10x20 Storage Near You

    Frequently Asked Questions About 10x15 & 10x20 Storage Units

    What is Extra Space Storage's policy on switching unit sizes?

    As long as the desired unit size is available, you can upgrade or downsize your storage unit whenever your needs change. Reach out to your facility manager for assistance with changing unit sizes.

    How many rooms will a 10x15 storage unit hold vs a 10x20?

    A 10x15 storage unit can fit the contents of a two-bedroom home or apartment, while a 10x20 can fit the belongings of up to three bedrooms.

    Is a 10x15 or 10x20 unit better for vehicle storage?

    A 10x20 storage unit is better for storing compact cars, though a 10x15 unit can still hold a motorcycle or ATV, along with other items.

    How many boxes fit inside a 10x15 vs 10x20 storage unit?

    A 10x15 storage unit can usually hold around 110-150 standard moving boxes, while a 10x20 unit can fit 200-250 boxes. The unit's actual capacity depends on whether you're also storing other large items and how efficiently you pack.

    Other Storage Unit Size Information

    Need more information on the storage unit sizes offered at Extra Space Storage? Learn more about how different unit sizes compare by visiting the unit size pages below.