Storage Unit Sizes Chart
Find the best self storage unit size for your needs in this table.
* Disclaimer: We calculate cubic feet assuming the typical 8-foot-tall unit height, but exact unit dimensions will depend on your facility’s available units.
STORAGE UNITS FOR OVERSIZED BELONGINGS
Mattresses
Twin and full-size mattress: A 5×5 will easily accommodate all mattresses smaller than a queen-size mattress.
Queen-size mattress: Though you might be able to squeeze a queen-size mattress into a 5×5, it’s going to be a really tight fit. A 5×10 will be much better.
King-size mattress: There’s no chance you’ll get a king-size mattress into a 5×5, but like the queen-size mattress, the king will fit nicely in a 5×10 or larger.
Motorcycles
Almost all motorcycles are longer than five feet in length. This makes 5×10 storage units (and larger) a good fit for anyone looking for an indoor vehicle storage option for their bike.
Automobiles
The smallest cars might be able to fit into a 10×15 storage unit, but the vast majority of automobiles, including cars, SUVs, vans, and some pickups, will fit into a 10×20 pretty easily. Some larger vans and trucks will require a 10×25 or a 10×30.
SMALL STORAGE UNITS
Storage units ranging from 5×5 to 5×10 provide more space than you'd think—and are often more affordable than you'd expect. On average, a 5×5 unit costs around $32 per month, while a 5×10 unit typically runs $54 per month, depending on location and features like climate control.
Some common uses for these self storage units include: seasonal storage for holiday decorations and yard tools, storing children's clothing, toys, and books, getting more space at home, and summer storage for students. Learn more about the difference between a 5x5 and 5x10 storage unit.
5x5 Storage Unit
How Big is a 5x5 Storage unit? The 5×5 is often the smallest storage unit at our locations, but it stores more than you’d think! With 25 square feet and 200 cubic feet of storage space, these units act like a small walk-in closet for smaller self storage needs.
What Fits in a 5x5 Storage unit? Though these are smaller storage units, vertical space can be maximized to provide plenty of space! Some items that can fit in a 5×5 include: Full-size mattress, Christmas tree, dresser, desk, chairs, boxes.
Learn more about 5x5 storage units.
5x10 Storage Unit
How Big is a 5x10 Storage unit? A 5x10 storage unit offers 50 square feet and 400 cubic feet of storage space, comparable in size to a medium-sized walk-in closet making it ideal for comfortably storing the belongings of a studio apartment.
What Fits in a 5x10 Storage unit? A 5x10 storage unit can hold the contents of a mid-sized bedroom (including boxes), some items that can fit in a 5×10 unit include: Queen and king-size mattress, dresser, couch, refrigerator, motorcycle and several boxes.
Learn more about 5x10 storage units.
MEDIUM STORAGE UNITS
Storage units ranging from 5×15 to 10×15 are highly versatile and one of the most popular sizes. On average, a 5×15 unit costs around $75 per month, and 10x15 typically costs around $134 per month, while a 10×10 storage unit typically costs $96 per month.
Typically used for storing the contents of an apartment or condo, additional storage to free up space at home, business storage for equipment, inventory, and materials. See if a small or medium unit works best for you by comparing 5x10 vs 10x10 storage units. Or compare medium and large units on our 10x15 vs 10x20 page.
5x15 Storage Unit
How Big is a 5x15 Storage unit? Comparable to a large walk in closet, 5×15 storage units provide 75 square feet and 600 cubic feet of storage space.
What Fits in a 5x15 Storage unit? Capable of holding the contents of an entire bedroom and additional items like a TV, sofa, several boxes, and more, the 5×15 is a popular option for those moving out of a small apartment or condo. Some items that can fit include: Bedroom furniture, sofa, desk, kitchen table, washer/dryer, refrigerator.
Learn more about 5x15 storage units.
10x15 Storage Units
How Big is a 10x15 Storage unit? A 10×15 storage unit offers 150 square feet and 1,200 cubic feet of storage space.
What Fits in a 10x15 Storage unit? These storage units can store several bedrooms’ worth of furniture plus some additional items. This makes them great for storing the contents of a two-bedroom apartment. Some commonly stored items might include: Contents of two to three bedrooms, living room furniture, contents of garage, some compact cars, materials for business storage.
Learn more about 10x15 storage units.
10x10 Storage Unit
How Big is a 10x105 Storage unit? Roughly half the size of a standard one-car garage, 10×10 storage units offer 100 square feet and 800 cubic feet of storage space.
What Fits in a 10x10 Storage unit? With enough space for multiple sets of bedroom furniture with room to spare, 10×10 storage units are commonly used to store the contents of a one or two-bedroom apartment. Some items that can be stored in these units include: Contents of two bedrooms or entire living room, grand piano, appliances.
Learn more about 10x10 storage units.
LARGE STORAGE UNITS
With enough space to store the contents of entire homes, 10×20 to 10×30 storage units are often used for: Storing the contents of a house while moving, storing vehicles, including cars and smaller RVs/boats. Compare large storage units by size, price, and use.
The average price of a 10x20 storage is around $175 per month. A slightly larger, 10x25 typically costs $206 on average per month, while the largest of the three, 10x30, averages $240 per month. Prices may vary by location and amenities.
10x20 Storage Unit
How Big is a 10x20 Storage unit? The 10×20 offers ample space for larger storage needs with 200 square feet and 1,600 cubic feet of storage space.
What Fits in a 10x20 Storage unit? Capable of storing the contents of a multi-bedroom house, some items that can be stored in a 10×20 include: Living room furniture, multiple sets of bedroom furniture, patio furniture, lawnmower, snow blower, average-sized automobile including sedans, large quantity of boxes.
Learn more about 10x20 storage units.
10x25 Storage Unit
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Learn more about 10x25 storage units.
10x30 Storage Unit
How Big is a 10x30 Storage unit? One of our largest storage units available, the 10×30 provides 300 square feet and 2,400 cubic feet of storage space.
What Fits in a 10x30 Storage unit? Similar to the space of a one and a half car garage, these self storage units can hold the contents of up to a five-bedroom house. Some items that can fit in a 10×30 might include: Automobile (with room to share), contents of four to five bedrooms, multiple sets of living room furniture, large quantity of boxes., patio furniture, desks, chairs, and other home office furniture.
Learn more about 10x30 storage units.
TIPS FOR ORGANIZING YOUR STORAGE UNIT
Use sturdy moving boxes or heavy-duty plastic containers of uniform size.
Group boxes by fragility or weight with heavier boxes on the bottom and fragile items on top.
Stack boxes no more than four high. You can also place boxes on top of sturdy furniture.
Place items you know you’ll need to access toward the front of your storage unit.
Key Considerations
Measure First: Map out items using tape on the floor to gauge space.
Inventory: Make a quick list of items you plan to store, including furniture, appliances, and any awkwardly-shaped items that will not be packed in boxes.
Accessibility: Consider if you'll need to access items more often, more space allows for easier navigation
Stacking: Units are typically 8-feet high; utilize vertical space.
Go Larger: If debating, choose a slightly larger unit to allow for easier access and maneuvering.
Item Type: Large items (sofas, mattresses) need more floor space; smaller, stackable items (boxes) can fit in smaller units.
Use our AI Smart Size Finder: An easy, free tool that helps you choose the perfect unit for your belongings in minutes.
Helpful Videos
WHAT SIZE DO YOU NEED?
Determining the right storage unit size is one of the more challenging aspects of renting a storage unit. We’ve compiled a list of all the sizes we offer and what types of items they have capacity to hold.
WHAT SIZE STORAGE UNIT IS NEEDED FOR A CAR?
A 10’x20’ drive-up storage unit should fit most cars, trucks, and SUVs. Compact cars may fit in a 10’x15’ unit, while longer vehicles need at least a 10’x30’ unit. It’s best to use a vehicle storage size estimator tool online before you book.
UNIT SIZE GUIDE
Extra Space Storage offers a wide range of self storage unit sizes. Each location is a little different. Some facilities have units as small as a 2x2 locker, while others have large-scale warehouse storage for commercial needs.
TIPS & RESOURCES
Storage 101
Check out our personal self-storage guide for help finding a storage solution that fits any need.
Vehicle Storage
Whether you need to store a car, motorcycle, boat, or RV, Extra Space Storage offers versatile, secure self storage for vehicles of all sizes.
Do you need climate-controlled storage?
Learn about the benefits of using temperature-controlled storage to keep your sensitive items protected from extreme heat or cold.
What size moving truck do I need?
When moving to a new home, getting the right moving truck is critical for saving time and money. Use our moving truck size calculator to help make the right decision for your moving truck rental!
How to pack and organize your storage unit
Learn how to maximize space in your storage unit, plus tips for keeping it organized.
What you need to reserve a storage unit
Renting a storage unit is easy! Double check what you need before you reserve your unit.
How to choose a storage unit
Find out which factors you need to consider when choosing a storage unit.
Moving cost calculator
How much does it cost to move? Get your moving cost estimate in minutes.
Do you need insurance for a storage unit?
Insurance is required when storing your items in a storage unit. Find out more about insurance policies and storing your belongings.
Storage for college students
Whether you’re looking for more space inside of your dorm, getting ready to study abroad, or needing summer storage, Extra Space Storage can help!
Business inventory and supplies storage
If your business has overstocked inventory or supplies, self storage can be an excellent solution to help you get space back at your commercial office or retail location.
Find cheap storage units near you
Extra Space offers clean, secure, and inexpensive storage units of all sizes. Find the best deal on storage units at a facility near you!
Storage Unit Size Guide Graphic
Extra Space Storage offers a variety of storage unit sizes. Learn more about common unit sizes and how to find the best unit size for your needs.
Storage Unit Size Guide Graphic
Extra Space Storage offers a variety of storage unit sizes. See our Size Guide Infographic below to learn more about common unit sizes and how to find the best unit size for your needs.
How Big is a 5x15 Storage Unit?
5x15 storage units are 5 feet wide and 15 feet long. These units have 75 square feet and 600 cubic feet of storage space.
What Does a 5x15 Storage Unit Look Like?
5x15 storage units are similar in size to a large walk-in closet, providing adequate space for your medium-to-large-sized belongings.
How Tall Is a 5x15 Storage Unit?
5x15 self storage units are typically 8 feet tall, but some locations may offer units with ceilings 10 feet or higher. Great for vertical storage, this medium-sized storage space gives you the ability to easily store tall or long items.
