Looking for storage units in Charleston, South Carolina? Browse and compare 42 self-storage facilities side by side. 5x5 units start at $17/month. 11 of them publish a monthly rate and unit sizes, so you can compare those without ringing round.

Charleston storage options range from small 5x5 lockers to large 10x30 drive-up units, on flexible month-to-month terms. 13 facilities offer climate-controlled storage to protect furniture, electronics, and documents from heat and humidity. 7 offer drive-up access for loading straight from your vehicle. 2 provide 24-hour access. 13 have vehicle, RV, or boat storage. Compare amenities and prices below to find the right unit in Charleston.

Charleston storage prices by unit size

Averages from real units listed across Charleston, SC facilities, in US dollars. 31% of them mention climate-controlled units on their own website.

Size	Typical use	Median / mo	Average	Range	Units
5×5	Closet-sized	$35	$42	$17 – $105	14
5×10	Studio / small bedroom	$71	$72	$25 – $119	25
5×15	Studio / 1-bedroom	$116	$116	$71 – $165	6
8×10	1-bedroom apartment	$123	$85	$46 – $123	2thin
10×10	1-bedroom apartment	$111	$123	$46 – $220	14
10×15	Large 1-bed / small 2-bed	$167	$163	$87 – $328	15
10×20	2–3 bedroom home	$228	$248	$72 – $429	22
10×25	3-bedroom home	$302	$323	$197 – $524	10
10×30	4–5 bedroom home	$339	$389	$228 – $628	8

Not sure which size you need? See the unit size guide or compare with the South Carolina 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 Charleston — Common Questions

How much does self storage cost in Charleston, SC?

The cheapest 5x5 unit published in Charleston is $17/month. Prices rise with unit size, and operators charge more for a climate-controlled unit than a standard one. 11 of the 42 facilities we list in Charleston publish a rate you can compare, and the rest we ring for you.

How many self storage facilities are in Charleston?

There are 42 self storage facilities in Charleston, South Carolina listed on StorageAtlas, including national chains and local operators. 11 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 Charleston?

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 Charleston?

Yes — 13 of the 42 storage facilities in Charleston 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.