What Size Storage Unit Do You Really Need?

Freda Levi • July 28, 2025

How to Pick the Right Storage Unit Size (Without Overthinking It) 

You’re standing in a room you used to recognize, but now it’s just stacks. Boxes. A mattress leaning against a wall. That kayak you promised you’d use. Something has to give. So, you think: storage facilities. 


And then comes the next question: how much space do I actually need? 


Not a trick question, but it turns into one if you’re not careful. Go too small, you’ll jam it like a junk drawer. Go too big, you’re paying for air. Either way, it adds up. In dollars, in frustration. 


Choosing the right size storage unit can save money and maximize space. Let’s try to keep it simple. 

 

What Are You Actually Storing? 

Don’t guess. Just look. 


Is it a bed? A desk? Boxes you haven’t opened since your last move? Write it down. Not for neatness. Just to see it all at once. You’ll forget otherwise. 


Measure what’s big. Sofas don’t shrink. Tables don’t fold unless they’re built that way. If you think you’ll add more later, make room now. Consider future storage needs when choosing a storage unit size. The “I’ll make it work” approach usually ends with swearing and re-packing. 

 

How Storage Sizes Really Work 

Storage units are tall—usually about 8 feet. That helps. But it’s the floor space that trips people up. Most storage facilities offer multiple sizes of storage units, often starting from small lockers to large rooms.


Storage guides often categorize units into small, medium, and large sizes for different needs.


Understanding standard sizes helps in choosing a unit that fits your belongings.


Here’s how it plays out, roughly: 

  • 5x5: A closet. Boxes, holiday stuff, maybe a small chair. 
  • 5x10: Half a room. A few pieces of furniture. Some boxes. Not bad for a studio. 
  • 10x10: A small apartment’s worth. Two rooms. Maybe a piano. 
  • 10x15: Two or three rooms. The things you meant to organize. Can accommodate bulky furniture and appliances, making it ideal for small families.
  • 10x20: A house, sort of. Could fit a car. Definitely fits your life in flux. Suitable for those needing space for up to five rooms' worth of belongings.
  • 10x30: Everything else. Big house. Big changes. A larger storage unit can store the contents of an entire household during transitions.


You don’t need to memorize this. Just know the vibe. And always check the actual facility—some shave inches, others give more. 

Storage unit size guide (2025) showing sizes, example contents, & price.

Storage Cost in 2025 

It depends where you live, but ballpark numbers help: 

  • Small units: ~$40–60/month 
  • Medium (10x10): ~$120–150 
  • Bigger units: $200 and up 


Add more for climate control. It’s worth it if you're storing wood, electronics, or anything you don’t want warped. Climate-controlled units are recommended for sensitive items to protect against temperature and humidity changes. $50 extra might save you from mold or regret. 


Promos help. A lot of places offer a free month or reduced first-month rates. Just read the fine print. 

 

Mistakes People Make 

They forget about height. Or leave no room to walk in. They think they’ll be in and out once, but life doesn’t work like that. An overcrowded unit poses tripping hazards and makes accessing items more difficult.


They store things they shouldn’t—food, batteries, paint. Or worse, they never actually look at the unit before signing. 


They over-pack. Then avoid it. Then pay to store things they stop needing. 

Doesn’t make them dumb. Just tired. We’ve all been there. 

 

Packing Without Losing Your Mind 

Stack high, but leave a path. Label everything. Plastic bins over cardboard—pests like the latter. Disassemble furniture when you can. Chairs in chairs. Tables turned sideways. It’s not a puzzle, but it sort of is. 


Selecting the right size unit ensures items are safely stored and organized.


Storage Unit Size FAQ 


What size storage unit do I need for a 2-bedroom apartment? 

Start with a 10x10 or 10x15. Depends how much furniture you actually have. If you’re not stacking high or need walking space, go bigger. Choosing a unit size with room for growth can avoid the need to rent a larger unit later.


How do I know what size I really need? 

Make a list. Measure the big stuff. Think about what you’ll add later. When in doubt, check it out in person. 


Will a 5x10 fit bedroom furniture? 

Some of it. Maybe a mattress, some boxes, and a dresser. But it’s tight. Not great for bulky things or lots of furniture. 


How much does a 10x10 cost in 2025? 

Around $120–150 a month, depending on where you live. Climate control adds more—closer to $200. 


What’s the biggest mistake people make? 

Thinking they’ll need less space than they do. Or packing it so tight they can’t find anything. 


Can I store my car? 

If it’s a small car, yes—10x20 or larger. Always check with the facility if they have a large storage unit. Some don’t allow it. 


Is climate control worth it? 

If you’re storing electronics, wood, paper, or anything sensitive to heat or humidity—yes. It costs more, but it saves headaches. 


How should I pack it? 

Stack vertically. Break down furniture. Label everything. Leave a walkway. Bins beat boxes. 


Do sizes vary by facility? 

Yes. What’s called a 10x10 in one place might be slightly smaller elsewhere. Always ask. 


Should I see the unit before renting? 

If you can, absolutely. Pictures aren’t always honest. It’s easier to decide when you’re standing in it.

September 16, 2025
Whether you’re downsizing, moving, or simply clearing space, figuring out how to store electronics in a storage unit takes real care. Devices do not forgive sloppy handling. Replacing a vintage stereo or a custom gaming tower is expensive, and some pieces are impossible to find again. With a basic plan and a little patience, you can pull everything back out later, plug it in, and feel that quiet relief when the screen lights the way it should. Understanding the Risks Storing electronics comes with challenges. Devices face threats in a storage facility that can turn a working unit into a dead weight. Temperature fluctuations make materials expand and contract. Internal components such as solder joints weaken, while sensitive components like circuit boards can fail under stress. Humidity is worse. Moisture creeps into seams, encourages corrosion, and raises humidity levels that damage sensitive electronics. Dust isn’t neutral either—it settles into vents, clogs fans, and coats circuit boards. Even static electricity or electrostatic discharge can destroy a chip instantly. Pests and rodents can chew wires, leading to physical damage. The value here isn’t just monetary. Valuable electronics often hold important data or memories. A computer may contain irreplaceable photos and records. Protecting them with electronics storage practices ensures your valuable devices are stored properly and remain functional. Choosing the Right Storage Unit The room you pick makes a difference. A climate-controlled storage unit or climate-controlled unit protects electronics against harmful effects of extreme temperatures and extreme cold or high temperatures. Climate controlled storage keeps the air conditioning steady, prevents condensation, and maintains safe humidity levels. Most experts recommend you choose climate-controlled storage if you’re storing electronics for more than short term storage. Climate controlled units provide the perfect solution for keeping devices stable. Security also matters. Electronics are easy to resell, so pick a self-storage unit with security cameras, gated entry, and lighting. The right storage unit should also provide extra protection with enough extra space for airflow. Remember: storage units offer peace of mind only when chosen carefully. Preparing Electronics for Storage Preparation is most of the job in packing electronics. Start by cleaning each device—use compressed air to remove dust and a cotton cloth to wipe screens. Always remove dust before boxing items. Back up important data before packing. Losing files is worse than replacing a device. Store backups on the cloud or external drives. Remove batteries from all devices. A leaking cell can damage components permanently. Always store batteries separately in cool, dry places. This applies to laptops, remote controls, and digital cameras. Packing Electronics Properly Whenever possible, use original packaging. If that’s not available, use sturdy boxes and protective packing materials like foam, bubble wrap, and packing paper. Wrap sensitive electronics in anti-static bags to protect them from static electricity. Even loose circuit boards or computer monitors benefit from this. Storing electronics in a sealed box can help protect them from dust and environmental hazards. Add silica gel packets inside boxes to control humidity levels and replace them when they reach saturation. This extra step helps keep electronics safe and prevents moisture from harming sensitive components. Screens should stay upright. Use bubble wrap or blankets to prevent scratches. For desktops, secure heavy internal components separately to avoid rattling inside. Always properly store devices with care to prevent scratches and other damage. Storage Best Practices Placement inside the storage unit matters. Never set devices directly on the floor—use pallets or shelves for extra protection. Keep valuable electronics away from storage unit doors, where temperature fluctuations are worst. Store your electronics in labeled boxes. Keep an inventory list with serial numbers to simplify insurance claims later. This also helps if you need to store items long term or want to test devices periodically. Periodically inspect devices for corrosion, pests, or other issues. Replace silica gel packets when needed. Also, consider testing stored items occasionally to make sure they still work. Insurance for Stored Electronics Even when electronics are stored properly, things happen. Insurance for stored electronics provides coverage if a storage facility is damaged by fire, floods, vandalism, or other extreme conditions. Insuring expensive electronics protects you from unexpected losses. Insurance for stored electronics can often be purchased directly from your storage company. Some providers even offer gadget insurance that covers other electronics excluded under renters or homeowners policies. Keep an inventory list with receipts and photos to simplify any insurance claims. Always review deductibles and exclusions—some policies may not cover theft or mysterious loss. Conclusion Learning how to store electronics in storage unit settings comes down to planning. Clean devices, remove batteries, use anti-static bags, add silica gel packets, and always rely on a climate-controlled unit. Keep an updated inventory list for insurance and store your electronics in a way that allows airflow and avoids extreme conditions. When electronics are stored properly, you prevent scratches, reduce harmful effects from dust and heat, and keep sensitive electronics safe until you need them again. For many, the small cost of climate-controlled storage is the perfect solution—offering both peace of mind and protection for your most val uable devices.
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