Looking for storage units in Seattle, Washington? Browse and compare 87 self-storage facilities side by side. 5x10 units start at $15/month. 38 of them publish a monthly rate and unit sizes, so you can compare those without ringing round.

Seattle storage options range from small 5x5 lockers to large 10x30 drive-up units, on flexible month-to-month terms. 34 facilities offer climate-controlled storage to protect furniture, electronics, and documents from heat and humidity. 18 offer drive-up access for loading straight from your vehicle. 7 provide 24-hour access. 32 have vehicle, RV, or boat storage. Compare amenities and prices below to find the right unit in Seattle.

Seattle storage prices by unit size

Averages from real units listed across Seattle, WA facilities, in US dollars. 39% of them mention climate-controlled units on their own website.

Size	Typical use	Median / mo	Average	Range	Units
5×5	Closet-sized	$43	$48	$19 – $100	63
5×10	Studio / small bedroom	$82	$85	$15 – $150	59
5×15	Studio / 1-bedroom	$111	$120	$66 – $224	14
8×10	1-bedroom apartment	$126	$118	$66 – $162	3thin
10×10	1-bedroom apartment	$122	$137	$21 – $300	38
10×15	Large 1-bed / small 2-bed	$197	$204	$73 – $409	29
10×20	2–3 bedroom home	$267	$317	$179 – $741	27
10×25	3-bedroom home	$429	$416	$284 – $502	5
10×30	4–5 bedroom home	$277	$353	$162 – $645	7

Not sure which size you need? See the unit size guide or compare with the Washington pricing overview.

Things you'll need

Disc lock

Required by most facilities

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Storage bins

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Shoulder Dolly

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Self Storage in Seattle — Common Questions

How much does self storage cost in Seattle, WA?

The cheapest 5x10 unit published in Seattle is $15/month. Prices rise with unit size, and operators charge more for a climate-controlled unit than a standard one. 38 of the 87 facilities we list in Seattle publish a rate you can compare, and the rest we ring for you.

How many self storage facilities are in Seattle?

There are 87 self storage facilities in Seattle, Washington listed on StorageAtlas, including national chains and local operators. 38 of them publish a monthly rate; every listing carries the address, amenities and contact details we hold.

What size storage unit do I need in Seattle?

A 5×5 unit (25 sq ft) holds a few boxes or seasonal items. A 10×10 (100 sq ft) fits a 1-bedroom apartment. A 10×20 (200 sq ft) suits a full 2–3 bedroom home. Most people over-estimate — stacking boxes and taking furniture apart usually lets a smaller unit do the job. Go a size up only if you have large items that cannot be dismantled, like an appliance or a sofa bed.

Are there climate-controlled storage units in Seattle?

Yes — 34 of the 87 storage facilities in Seattle offer climate-controlled units. Climate control keeps temperatures stable year-round and is recommended for wood furniture, electronics, documents, artwork, and anything sensitive to heat or humidity.