Car storage units in Mercer Island, WA, and nearby areas

Q: What size storage unit is best for a car?

A 10’&#215;20’ unit is the go-to size for most standard cars. Compact cars? You might only need a 10’&#215;15’. Trucks, vans, or larger SUVs? A 10’&#215;30’ will give you the extra space you need.

Q: Can two cars fit in a 10&#215;30 storage unit?

Yes – in most cases! A 10’&#215;30’ unit is about the size of a standard two-car garage, so you can usually fit two compact vehicles side by side.

194 available units | 10 facilities

Clean, will lit & the best staff! Every time I head to Storage Court to put something in or get something out of our unit I am grateful that we have such a nice facility on Mercer Island. Trudy, the manager, is the BEST and is undoubtedly the person who maintains this property so well. I always feel safe and well taken care of when I need anything. Thank you Trudy and Storage Court for great service over the past 20 years!
Posse Sharples
4.4/5 - 11 Reviews
Storage Court - 8501 SE 68th Street, Mercer Island, WA 98040
- Climate-Controlled
- Indoor
- 24 hour access
10x22 Large $296/mo
Robin was great
nolan weir
Contactless
4.7/5 - 1819 Reviews
Public Storage - 10020 Martin Luther King Jr. Way South, Seattle, WA 98178
- Climate-Controlled
- Indoor
- Drive-Up Access
10x20 Large $192/mo
Nice clean place. Nice friendly and helpful staff.
Robert Hallwood

Contactless
4.4/5 - 47 Reviews
Newcastle Heated Storage - 7115 132nd Place SE, Newcastle, WA 98059
- Climate-Controlled
- Indoor
- Drive-Up Access
8.5x19 Medium $306/mo
14x25 Large $359/mo
Very pleased with my rental process and polite service.
JJP

Contactless
4.7/5 - 310 Reviews
Public Storage - 13105 SE 30th Street, Bellevue, WA 98005
- Indoor
- Drive-Up Access
- Retail Available
10x20 Large $361/mo
Storage can be a very dull and boring business. Let alone having to move your stuff in and out. Mylia does an amazing job taking care of customers and making the experience a personal and fun one. Thanks!
Roei Ganzarski

Contactless
4.7/5 - 372 Reviews
Public Storage - 4041 124th Avenue SE, Bellevue, WA 98006
- Climate-Controlled
- Indoor
- Drive-Up Access
10x20 Large $206/mo
How much space do you need?
Use our calculator to quickly find the right unit size for your belongings.
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Joe was awesome!
Joy Kristine Linsao

Contactless
4.7/5 - 364 Reviews
Public Storage - 1755 NE 48th Street, Renton, WA 98056
- Climate-Controlled
- Indoor
- Drive-Up Access
10x20 Large $375/mo
I've used this storage facility many times, great rates, friendly and courteous staff!! AAAA will always be my go to storage place!! Thank you again!!
Hortensia Murillo
4.5/5 - 66 Reviews
AAAA Mini Storage - 9640 Des Moines Memorial Drive, Seattle, WA 98108
- Indoor
- Drive-Up Access
- Onsite Manager
5x10 Small $45/mo
James is the new manager at this location and he takes customer service to the next level in every aspect. I was looking some help in vacating my storage unit and he not just helped me with that but made the whole process super easy and extremely convenient with no surprises whatsoever ever. He guided me through the process and left no stone unturned to ensure the engagement far exceeds my expectations. Thanks James.
M T

Contactless
4.8/5 - 729 Reviews
Public Storage - 12465 Northup Way, Bellevue, WA 98005
- Climate-Controlled
- Indoor
- Drive-Up Access
10x20 Large $433/mo
John Michael is a great asset to your team..very nice guy and very friendly. Came to me on my visit and asked me if everything was good so I appreciate that
Branson Perkes

Contactless
4.6/5 - 215 Reviews
Public Storage - 1800 124th Avenue NE, Bellevue, WA 98005
- Climate-Controlled
- Indoor
- Drive-Up Access
7.5x15 Medium $107/mo
10x25 Large $291/mo
Jose was very helpful in helping me relocate to a new unit
Alex Karre

Contactless
4.6/5 - 508 Reviews
Public Storage - 12385 Northup Way, Bellevue, WA 98005
- Climate-Controlled
- Indoor
- Drive-Up Access
10x18 Medium $454/mo
10x20 Large $576/mo

Popular storage types in Mercer Island:

Self storage from $12

Car storage units in nearby cities:

Newcastle, WA : 5 storage units (4 miles away) from $66
Burien, WA : 14 storage units (8 miles away) from $27
SeaTac, WA : 1 storage unit (9 miles away) from $29
Kirkland, WA : 4 storage units (10 miles away) from $56
Sammamish, WA : 1 storage unit (10 miles away) from $51
Redmond, WA : 3 storage units (11 miles away) from $44
Issaquah, WA : 1 storage unit (12 miles away) from $87
Shoreline, WA : 4 storage units (15 miles away) from $25
Covington, WA : 2 storage units (15 miles away) from $29
Woodinville, WA : 18 storage units (15 miles away) from $29
Bainbridge Island, WA : 2 storage units (16 miles away) from $69
Maple Valley, WA : 2 storage units (17 miles away) from $42
Mountlake Terrace, WA : 1 storage unit (17 miles away) from $43
Bothell, WA : 6 storage units (17 miles away) from $30
Auburn, WA : 8 storage units (19 miles away) from $19
Lynnwood, WA : 7 storage units (19 miles away) from $32
Edmonds, WA : 13 storage units (19 miles away) from $31

Browse storage units in other top cities across Washington:

Seattle, WA : 1,032 storage units from $12
Spokane, WA : 307 storage units from $20
Tacoma, WA : 485 storage units from $14
Vancouver, WA : 344 storage units from $25
Bellevue, WA : 156 storage units from $48
Kent, WA : 299 storage units from $20
Everett, WA : 222 storage units from $14
Spokane Valley, WA : 280 storage units from $25
Renton, WA : 113 storage units from $36
Federal Way, WA : 127 storage units from $16

Browse storage units in all Washington cities.

Car storage cost

If you’re looking to store your car in Mercer Island, WA, you can expect to pay around $299 per month. That’s 85% more than the national average of $162.

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Why the price might be higher: In Mercer Island, WA, high demand and limited space mean that good car storage gets snapped up quickly. When you find a solid rate, it's a smart move to lock it in.

How much does car storage cost in Mercer Island, WA?

Avg. Car Storage Rent

$299/mo

National Avg. Car Storage Rent

$162/mo

Data from StorageCafe, May 2026

Not sure what size you need? Let’s find out.

Find the right unit size for your vehicle. Choose your make, model, and year to see what fits best.

Car storage options

Finding the right place to store your car in Mercer Island, WA is simple. With 1 local facility offering a range of choices, you can pick what works best for your vehicle and budget – whether that’s a basic outdoor space or an indoor unit with full protection.

Outdoor car storage: affordable and convenient, great for everyday vehicles and short-term needs.

Open outdoor storage

Budget-friendly option on paved, gravel, or grass surfaces
Best for warm-weather or short-term storage
Tip: Use a quality car cover for extra protection

Covered outdoor storage

Still outdoors, but under a canopy or carport
Extra protection from sun and rain
Great balance between cost and coverage

Indoor car storage: Best for long-term protection or storing classic/luxury vehicles.

Park inside a garage-style unit or shared indoor space
Shields your car from rain, snow, and temperature swings
Some units offer climate control for added protection against humidity
Ideal for classic cars, convertibles, or off-season vehicles

Frequently Asked Questions

What size storage unit is best for a car?

A 10’×20’ unit is the go-to size for most standard cars. Compact cars? You might only need a 10’×15’. Trucks, vans, or larger SUVs? A 10’×30’ will give you the extra space you need.

Can two cars fit in a 10×30 storage unit?

Yes – in most cases! A 10’×30’ unit is about the size of a standard two-car garage, so you can usually fit two compact vehicles side by side.

Can I store a classic car in a storage unit in Mercer Island, WA?

Absolutely. For a classic, luxury, or collector car, your best bet is a climate-controlled indoor unit. This keeps temperature and humidity stable, helping preserve your vehicle’s finish and components.

How to find storage near me

Looking for the best storage options in Columbus, OH? We've got you covered with the most extensive inventory of listings, conveniently available online. Use our location finder to search for storage space in your desired area and easily compare features, prices and unit sizes to find the perfect spot for all your stuff.

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