Storage Unit
Size Guide
Not sure which storage unit size you need? This comprehensive guide walks you through every unit — from 5×5 closet-sized spaces to 10×25 garage-sized units — with real dimensions, what fits inside, and expert packing advice.
Reserve Your Storage Unit View Size ChartWhether you're moving across town, clearing out a spare bedroom, storing business inventory, or parking a vehicle for the season — picking the right storage unit size is the single most important decision you'll make.
Too small, and you'll pay for a second unit. Too large, and you're throwing money at wasted space. This storage unit size guide gives you everything you need: exact dimensions, cubic footage, real-world comparisons, and honest advice for every budget and scenario.
Below, you'll find in-depth breakdowns for every major storage unit size, a full comparison chart, specialty storage options, packing tips, and a comprehensive FAQ — all built to help you choose with confidence.
Moving & Relocation
Bridge the gap between homes with a temporary unit sized to your furniture load.
Furniture Storage
Keep couches, beds, and dining sets safe during renovations or downsizing.
Business Inventory
Store overstock, equipment, files, or seasonal merchandise affordably.
College & Student
Affordable seasonal storage for dorm furniture and personal belongings.
Vehicle Storage
Secure indoor or outdoor space for cars, motorcycles, RVs, and boats.
Seasonal & Declutter
Free up your home year-round with affordable seasonal storage solutions.
5×5 Storage Unit — Walk-In Closet Size
The 5×5 storage unit is the smallest standard option available — and the most affordable. At just 25 square feet, it's roughly the size of a large walk-in closet, making it ideal for light personal storage.
Don't underestimate a 5×5. With floor-to-ceiling stacking (units typically stand 8–10 feet tall), you can fit a surprising amount in 125 cubic feet of storage space.
✅ What Fits
- 10–15 medium moving boxes
- Small furniture (end tables, chairs)
- File boxes and office supplies
- Seasonal clothing and bins
- Sports equipment (skis, golf clubs)
- Bicycles (one, upright)
- Small appliances
🏠 Best For
- Studio apartment overflow
- Dorm room summer storage
- Seasonal décor and clothing
- Document and file archiving
- Locker-style personal storage
- Hobbyist gear storage
Use vertical space aggressively in a 5×5. Stack boxes from floor to ceiling, and store items you won't need frequently at the back. Vacuum-seal seasonal clothing to dramatically reduce volume.
5×10 Storage Unit — Small Bedroom Size
The 5×10 is one of the most popular storage unit sizes for individuals and small households. At 50 square feet, it holds the contents of a small bedroom or large studio apartment.
Can a couch fit in a 5×10 storage unit? Yes — a standard loveseat or small sofa fits comfortably, along with a mattress set and several boxes. It's the go-to size for 1-bedroom apartment moves.
✅ What Fits
- Twin or full mattress set
- Small sofa / loveseat
- Dresser and nightstand
- 20–30 medium boxes
- Washer or dryer (one)
- Bicycle and outdoor gear
- Small TV and electronics
🏠 Best For
- 1-bedroom apartment contents
- Short-term moving storage
- College student furniture
- Seasonal furniture storage
- Home renovation overflow
- Small business inventory
Store the mattress upright against the back wall, then build forward with dressers and boxes. Place frequently accessed items near the door. Use furniture drawers as additional box space.
5×15 Storage Unit — In Between Size
The 5×15 fills the gap between small and mid-size storage. At 75 square feet, it's equivalent to a large walk-through closet — long and narrow, making it excellent for storing items of length like mattresses, sofas, and lumber.
This size is ideal when a 5×10 is too tight but a 10×10 feels like too much. It's a smart, cost-effective middle ground for 1-bedroom or light 2-bedroom household moves.
✅ What Fits
- Queen mattress set
- Full sofa + armchair
- Multiple dressers
- 30–40 boxes
- Appliances (washer & dryer)
- Long items: boards, rods, kayaks
🏠 Best For
- 1–2 bedroom apartment move
- Furniture during renovation
- Long-term household storage
- Seasonal gear (skis, kayaks)
- Motorcycle storage
The long, narrow layout suits long items perfectly. Store sofas, mattresses, and boards lengthwise. Stack boxes along both walls and keep a central walking path for easy access.
10×10 Storage Unit — Master Bedroom Size
The 10×10 is the single most popular storage unit size in the country — and for good reason. At 100 square feet and up to 1,000 cubic feet of usable space, it comfortably holds the contents of a full 2-bedroom apartment.
How many boxes fit in a 10×10 storage unit? With efficient floor-to-ceiling stacking, you can typically fit 40–50 standard moving boxes alongside furniture. It's the workhorse of the storage world.
✅ What Fits
- King mattress set + bed frame
- Full sofa + loveseat
- Dining table & 6 chairs
- Multiple dressers & wardrobes
- Washer, dryer & refrigerator
- 40–50 moving boxes
- Outdoor furniture sets
🏠 Best For
- 2-bedroom apartment or home
- Full household moves
- Home renovation storage
- Business inventory & archives
- Long-term family storage
- Motorcycle storage
Think of packing a 10×10 like a game of Tetris. Break down all bed frames and large furniture. Use the interior of wardrobes and dressers to store folded items. Create a labeled box map so you can find anything quickly.
10×15 Storage Unit — Large Living Room Size
The 10×15 provides 150 square feet — equivalent to a spacious living room. It's the right choice when you need to store the contents of a 3-bedroom home or a large apartment with significant furniture.
This size also works well for businesses storing medium-sized equipment, inventory pallets, or seasonal retail stock. The additional depth over a 10×10 makes all the difference when you have bulky or oversized items.
✅ What Fits
- Full 3-bedroom apartment
- Multiple large appliances
- Outdoor furniture + equipment
- Large sectional sofa
- Piano (upright)
- 50–60 moving boxes
- Business equipment & displays
🏠 Best For
- 3-bedroom home contents
- Full home renovation storage
- Business inventory & retail
- Long-term family relocation
- Collectors & specialty storage
Consider adding wire shelving units along one wall to dramatically increase usable capacity. Label shelves by category (kitchen, bedroom, business) and keep an aisle down the center for easy access.
10×20 Storage Unit — One-Car Garage Size
How big is a 10×20 storage unit? It's the equivalent of a standard one-car garage — 200 square feet with up to 2,000 cubic feet of storage capacity. This is one of the most versatile large units available.
A 10×20 can hold the complete furnishings of a 3–4 bedroom home, and many facilities offer drive-up access for this size, making loading and unloading much easier. It's also commonly used for vehicle storage — a standard sedan or small SUV fits comfortably.
✅ What Fits
- Full 3–4 bedroom home
- Standard sedan or small SUV
- Multiple large appliances
- Large sectional + full dining set
- Commercial shelving + pallets
- 60–80 moving boxes
- Riding lawn mower + outdoor tools
🏠 Best For
- Large home relocation
- Full estate or downsizing storage
- Car / small vehicle storage
- Business warehouse overflow
- Construction material storage
- Landscaping equipment
If storing a vehicle, place it first and build your storage around it. Use the roof and trunk space of the vehicle to store additional boxes. Leave a perimeter walkway for access to stored items.
10×25 Storage Unit — Large Garage Size
The 10×25 is the largest standard storage unit available at most facilities. With 250 square feet and 2,500 cubic feet of capacity, it rivals a large two-car garage and can handle the most demanding storage needs.
This size is commonly chosen by families moving from large homes, contractors storing heavy equipment, and businesses needing substantial warehouse-style space. Many 10×25 units feature drive-up access, making it easy to load with dollies or forklifts.
✅ What Fits
- Full 5-bedroom home contents
- Full-size pickup truck
- Two standard vehicles (compact)
- Heavy contractor equipment
- Commercial inventory & displays
- 80–100+ moving boxes
🏠 Best For
- Large estate or downsizing
- Long-term business inventory
- Contractor tool & equipment storage
- Multi-vehicle storage
- Restaurant or retail overflow
Use a combination of freestanding shelving units and floor stacking. Create clearly labeled zones (e.g., bedroom items, kitchen items, business stock). A unit this large benefits greatly from a hand-drawn floor plan before loading.
Storage Unit Size Chart
Compare all standard self-storage unit sizes at a glance — dimensions, capacity, comparable spaces, and best use cases.
| Unit Size | Sq Ft | Cubic Ft | Comparable To | Best For | Avg. Monthly Cost |
|---|---|---|---|---|---|
| 5×5 | 25 sq ft | ~125 cu ft | Walk-in closet | Small personal storage, students | $30–$75 |
| 5×10 | 50 sq ft | ~500 cu ft | Large bedroom closet | 1-bedroom apartment, studio | $50–$120 |
| 5×15 | 75 sq ft | ~750 cu ft | Walk-through closet | 1–2 bedroom apt, renovation | $75–$150 |
| 10×10 Most Popular | 100 sq ft | ~1,000 cu ft | Master bedroom | 2-bedroom home, full moves | $90–$180 |
| 10×15 | 150 sq ft | ~1,500 cu ft | Large living room | 3-bedroom home, business | $120–$220 |
| 10×20 | 200 sq ft | ~2,000 cu ft | One-car garage | 3–4 bedroom home, vehicles | $150–$280 |
| 10×25 | 250 sq ft | ~2,500 cu ft | Two-car garage | 5+ bedroom home, business | $200–$350 |
* Prices vary by location, facility, features, and demand. Contact your local facility for exact pricing.
Climate-Controlled & Specialty Storage
Standard units aren't the only option. Depending on what you're storing and for how long, specialty storage types may be a smarter choice.
Climate Controlled Storage
Climate controlled units maintain consistent temperature (typically 55–85°F) and humidity levels year-round. They're essential for electronics, antiques, wine, artwork, wooden furniture, important documents, and anything sensitive to moisture or extreme heat. Is climate controlled storage worth it? For valuable or sensitive items, absolutely yes — the extra $20–$50/month is cheap insurance against irreversible damage. Learn more about climate controlled storage →
Drive-Up Storage Units
Drive-up units sit at ground level with direct outdoor access — like a personal garage bay. They make loading and unloading heavy furniture, appliances, and equipment dramatically easier. Most 10×20 and 10×25 units offer drive-up access, and many facilities have drive-up options starting at 5×10. Ideal for frequent access and heavy loads. See drive-up unit availability →
Indoor Storage Units
Indoor units are accessed from climate-controlled hallways inside the facility building. They offer enhanced protection from outdoor elements and typically feature better security (cameras, coded access floors, etc.). Best for sensitive items, long-term storage, and anything you want extra protection for. Higher security and comfort come at a slight price premium over drive-up units.
RV Storage Sizes
RV storage requires significantly more space than standard units. Most Class A motorhomes run 30–45 feet long, requiring a dedicated RV storage bay (typically 12×35 to 14×50). Facilities may offer covered, uncovered, or fully enclosed options. Enclosed RV storage provides the most protection. What size RV storage do you need? Measure your RV's total length including tow hitch, and add 4–5 feet of clearance. View RV storage options →
Boat Storage Sizes
Boat storage dimensions depend entirely on your vessel. A 17-foot runabout needs at minimum a 10×20 enclosed unit; larger boats require 12×30 or 12×40 bays. Outdoor covered boat storage is the most popular option, while indoor enclosed boat storage offers maximum protection. Always account for the trailer length plus tongue when measuring. Explore boat storage →
Vehicle & Motorcycle Storage
A standard motorcycle typically fits in a 5×10 unit. Cars require a minimum 10×15 or preferably a 10×20 for comfortable fit with door-opening clearance. Enclosed vehicle storage protects from weather, UV exposure, and theft far better than outdoor parking. For high-value vehicles, climate controlled enclosed storage is the gold standard. View vehicle storage →
How to Pack a Storage Unit Efficiently
Maximize every inch of your storage unit with these professional packing and organization strategies.
Plan Before You Pack
Sketch a rough floor plan and decide what goes where before moving a single box. Assign zones: boxes in back, furniture along sides, frequently accessed items near the door.
Use Vertical Space
Storage units typically stand 8–10 feet tall. Stack boxes and bins from floor to ceiling. Use heavy, sturdy boxes at the bottom and lighter items on top. Freestanding shelves double your accessible capacity.
Disassemble Large Furniture
Break down bed frames, dining tables, and shelving units. Store hardware in labeled zip-lock bags taped to the furniture piece. This can save 30–40% of your required floor space.
Protect Your Items
Wrap mirrors and glass in moving blankets. Use mattress covers for bedding. Place moisture-absorbing packets (desiccants) in electronics boxes. Cover furniture with breathable drop cloths, not plastic.
Label Everything Clearly
Label all four sides of every box with room, contents, and priority (frequent access vs. long-term). Create a simple inventory spreadsheet. You'll thank yourself the day you need something specific.
Climate vs. Standard: Choose Right
Use standard storage for hardy items: tools, patio furniture, non-sensitive sporting goods. Choose climate controlled for anything temperature or moisture-sensitive: electronics, wood furniture, antiques, documents, clothing.
Frequently Asked Questions
Everything you need to know about storage unit sizes, dimensions, access, and choosing the right unit.
Storage You Can Trust
Our self-storage facilities are built around your security, convenience, and peace of mind.
24/7 Security
HD surveillance cameras, individually coded gate access, and on-site management at all locations.
Flexible Access
Extended access hours — often 6am–10pm daily — so your schedule is never an obstacle.
Climate Control
Year-round temperature and humidity regulation available for all sensitive item storage needs.
No Long Contracts
Month-to-month rental terms with no long-term commitment required. Rent for a week or a decade.
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Choosing the Right Storage Unit Size: Final Thoughts
Selecting the right storage unit is simpler than it seems — once you know what you're storing and roughly how much space it takes. Start with the basics: list your items, match to the size guide above, and when in doubt, size up by one step.
Remember: the most popular self-storage unit size (the 10×10) is popular because it hits the sweet spot between cost and capacity. But a 5×10 may be all you need, or a 10×25 may be the right call. Use this guide, reference the comparison chart, and let your actual inventory — not guesswork — drive your decision.
For temperature-sensitive belongings, always choose climate controlled storage. For heavy or frequent loads, drive-up access is a game-changer. And always confirm interior dimensions before signing a lease.
Whether you're moving, renovating, downsizing, or storing a vehicle — the right unit is waiting. Reserve yours today and get affordable, secure self-storage on your terms.