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When you think of self-storage, you probably think of a unit for boxes, seasonal decor, and maybe an old couch and furniture. But a 10x40 storage unit is in a category of its own. With over 400 square feet of space, this extra-large unit is built for big moves, oversized vehicles, and large-scale business storage.
If you’re wondering what can fit into a 10x40 unit (and what can’t), this guide will break it down into simple terms.
How Big Is a 10x40 Storage Unit?
A 10x40 storage unit is one of the largest standard unit sizes you’ll find at some self-storage facilities. At 40 feet long and 10 feet wide, it offers:
400 square feet of floor space
3,000+ cubic feet of capacity (dependent on ceiling height)
Comparable to a four-car garage
Easy access since 10x40s are typically ground-floor drive-up storage units
Hard to picture? Imagine pulling a school bus or four compact cars into a parking space. That’s the kind of size we’re talking about! For most customers, this storage unit size feels similar to a warehouse bay (versus a traditional self-storage unit).
What Fits in a 10x40 Storage Unit?
The versatility of a 10x40 is what makes it so popular for our renters with large-scale storage needs. It can fit:
Contents of an entire 4-5 bedroom home: Including large items, such as bedroom furniture, sectionals, appliances, entertainment centers, and dining furniture
Vehicle Storage: This size is ideal for storing cars, trucks, trailers, and many mid-sized RVs. Some people even use it as a long-term garage for project and classic cars. It’s also an excellent choice for boat storage
Business Storage: Growing companies can use a 10x40 like a small warehouse for their business inventory. It provides ample space for shelving, bulk product on pallets, and office furniture and equipment.
Outdoor and Recreational Gear: A 10x40 is a practical solution for motorcycle storage, jet skis, ATVs, ride-on lawnmowers, and other equipment you want to clear from a garage or driveway
What Doesn’t Fit in a 10x40 Storage Unit?
Despite its impressive size, there are still limitations. A few things that you cannot store in a 10x40 include:
Oversized RVs or trailers: Some Class A motorhomes or fifth-wheel trailers exceed 40 feet or need high clearance. Always measure a unit before assuming it’s the right size for RV storage
Hazardous or restricted items: Like all self-storage solutions, you cannot store gasoline, propane tanks, fireworks, paint, or chemicals. Check your lease for a list of prohibited items
Perishable and Food Items: 10x40 storage units are not designed for food storage and can attract pests
Illegal or restricted property: Anything that goes against local law or company policy is prohibited
Still unsure about what you can store in a 10x40 storage unit? That’s ok! Use our Storage Unit Size Guide - or contact us and we’ll assist with your questions.
Who Typically Rents a 10x40 Storage Unit?
You may want to consider renting a 10x40 storage unit if you fall into one of these groups:
Families in Transition: A 10x40 will make moving easier by giving you the extra space you need during the gap between homes. It’s also great during large-scale renovations or when you need short-term household storage after a natural disaster
Business Owners: Whether you’re running an e-Commerce shop, landscaping business, or just need inventory space, a 10x40 can act as a mini warehouse without the long-term lease requirement
Vehicle & Hobby Enthusiasts: If you’ve exceeded outdoor storage at home in your yard or driveway, this unit is right for you! Some facilities even offer 10x40s with climate control, which is ideal for classic cars and certain hobby supplies
Tips for Maximizing Your 10x40
Because a 10x40 storage unit is so large, organization is key! Here are some top tips to consider:
Plan an aisle: Resist the urge to wall everything off. Leaving a walkway down the middle will make your life much easier later.
Use vertical space: Bring in shelving or racks so you can safely stack items and maximize cubic feet.
Zone your storage: Keep furniture on one side, vehicles on another, and boxes stacked together. This way you don’t have to dig through a maze to find things.
Protect big-ticket items: Invest in car covers, furniture pads, or shrink wrap to protect your belongings during long-term storage.
Is a 10x40 Storage Unit Right for You?
If you only need to store a few boxes and a couch, you want to rent a smaller storage unit. But, if you’re facing major life transitions or are running a business, a 10x40 is one of the best solutions out there.
How a 10x40 Storage Unit Compares to Other Storage Unit Sizes
Choosing a storage unit is often about comparing what you need now versus what you may need later on. While you can always upgrade or downgrade your storage unit size, it's easiest to move into the best fit now (so you don't have to move twice!).
| Unit Size | Square Feet | How Does It Compare to a 10x40? | What it Fits |
| 10'x10' | 100 Sq. Ft. | A 10x10 is one-quarter of the size | Contents of a small apartment, including furniture. Can fit a motorcycle. |
| 10'x15' | 150 Sq. Ft. | A 10x40 will offer 3x the space of a small 10x15 | Items of a 2-bedroom apartment or small home. Not suitable for vehicles. |
| 10'x20' | 200 Sq. Ft. | A 10x20 is half the capacity of a 10x40, but sit is ill considered a large unit size | Contents of a 3-bedroom home. Suitable for small car storage, such as a compact car |
| 10'x30' | 300 Sq. Ft. | A 10x30 has 100 sq. feet less in length, which can make a difference when storing a boat or trailer | Contents of a 3 to 4-bedroom home. Suitable for small to medium-sized vehicle storage needs |
Get the 10x40 Storage Space You Need Today!
At Storage Star, we offer 10x40 storage units at select storage facilities. If you’re moving, expanding your business, or looking for safe RV storage, our team is here to help you find the perfect fit.
Find a Storage Star near you now to browse our storage options, compare monthly rates, and learn about move-in specials. Easily rent online and quickly get into your new unit! For more questions, contact us now, and our friendly storage experts will help you out!
FAQs
How big is a 10x40 storage unit?
A 10x40 storage unit offers around 400 square feet of floor space and over 3,000 cubic feet of storage space. This is comparable to a four-car garage.
What can you fit in a 10x40 storage unit?
A 10x40 storage unit can hold the contents of a 4-5 bedroom home, oversized vehicles including boats and RVs, business inventory, and contractor equipment.
Can a 10x40 storage unit fit a vehicle or RV?
Yes, most 10x40 storage units can fit vehicles such as trucks, vans, RVs, trailers, and boats. Before renting a storage unit, measure the size, including the height.
Is a 10x40 storage unit available at every Storage Star facility?
No. Not all Storage Star facilities offer 10x40s, as they're considered extra-large specialty units.
Are 10x40 storage units climate-controlled?
Availability depends on the facility. Some 10x40 units may be drive-up only, while others offer climate-controlled options for sensitive items and luxury RVs.
