Storage Unit Sizes & Pricing in Marietta, GA

Choosing the right storage unit size in Marietta saves you money every month. A unit that is too large wastes space and budget. A unit that is too small forces you to cram things in, risks damage, and makes it impossible to access items in the back. This guide breaks down every unit size available at Ark Self Storage on Cobb Parkway — with practical examples of what fits in each one — so you can choose with confidence.

Our Marietta facility offers 9 unit configurations across standard and climate-controlled types, including a unique 8×15 unit you will not find at most Cobb County facilities. All units are ground-level with 24/7 keypad gate access. No deposit is required, and every lease is month-to-month.

Complete Size & Pricing Guide

Standard Units

Size	Sq Ft	Monthly Rate
5 x 5	25 sq ft	$54.00
5 x 10	50 sq ft	$74.00
8 x 15	120 sq ft	$114.00
10 x 10	100 sq ft	$124.00
10 x 15	150 sq ft	$144.00
10 x 20	200 sq ft	$164.00

Climate-Controlled Units

Size	Sq Ft	Monthly Rate
5 x 5	25 sq ft	$64.00
5 x 10	50 sq ft	$84.00
5 x 15	75 sq ft	$104.00

All new tenants qualify for our 50% off your first 3 months special. Call 770-955-5128 to check availability.

What Fits in Each Size

5×5 (25 sq ft) — $54 Standard / $64 Climate-Controlled

About the size of a large closet. Fits a small dresser or bookshelf, a desk chair, 8–12 boxes, and seasonal items like holiday decorations, winter coats, or camping gear. This is a popular size for Marietta apartment renters who need extra space without the cost of a larger apartment, and for homeowners storing seasonal decorations and overflow items from the garage.

5×10 (50 sq ft) — $74 Standard / $84 Climate-Controlled

The size of a walk-in closet. Holds a complete bedroom set — queen mattress (on its side), dresser, nightstand — plus 10–15 boxes. This is the go-to size for anyone staging a bedroom for a home sale in Marietta’s competitive market, storing apartment furniture during a lease transition, or keeping business records and supplies.

5×15 (75 sq ft) — $104 Climate-Controlled

A step up from the 5×10 with 50% more depth. Holds a large bedroom set or the contents of a studio apartment — bed, dresser, couch, small table, and 15–20 boxes. The extra length accommodates longer items like bookshelves, floor lamps, and disassembled bed frames laid flat. All 5×15 units are climate-controlled, making this an excellent choice for storing furniture and electronics during a home renovation.

8×15 (120 sq ft) — $114 Standard

A unique size you will not find at most storage facilities. At 120 square feet, it sits between a 10×10 and a 10×15 — ideal if a 10×10 is just a bit too tight but a 10×15 is more than you need. Holds a one-bedroom apartment’s contents with room to spare, or a large living room set with additional boxes. The wider-than-standard width makes it easy to organize items side by side for quick access.

10×10 (100 sq ft) — $124 Standard

Our most popular size. Holds the contents of a typical one-bedroom apartment: couch, queen bed, dresser, small dining set, TV, and 20–30 boxes. This is the unit most Marietta residents choose when downsizing, renovating, or relocating within Cobb County. It is also the right size for clearing out a home for staging — you can move an entire living room and bedroom into a 10×10 and make the house show-ready.

10×15 (150 sq ft) — $144 Standard

Holds the contents of a two-bedroom home. Two bedroom sets, a living room suite, kitchen boxes, and miscellaneous items. A strong choice for families renovating multiple rooms, homeowners between selling and buying, or small businesses storing significant inventory and equipment.

10×20 (200 sq ft) — $164 Standard

Our largest unit. Fits the contents of a three-bedroom house or a household plus a vehicle. At 200 square feet, it holds a couch, two bedroom sets, a dining table, appliances, and 40+ boxes with room to walk down the center. This is the choice for Marietta homeowners doing a full-house renovation, families relocating from out of state, and anyone staging an entire home for the Cobb County real estate market.

How to Choose the Right Size

1. List your large items first — Furniture, mattresses, and appliances set your minimum unit size. Everything else fits around them.
2. Count your boxes — A typical bedroom produces 10–15 moving boxes. A kitchen adds another 10–15. A garage or basement can add 20+.
3. Standard or climate-controlled? — Durable items (plastic bins, metal tools, outdoor gear) are fine in standard. Sensitive items (wood, electronics, paper, fabric) benefit from climate control.
4. Leave an access aisle — A narrow path down the center lets you reach items in the back without moving everything.
5. Use the calculator — Our free storage calculator recommends the right size based on what you plan to store.

When in doubt, go one size up. The modest cost difference is worth the convenience of easy access and room to add items later.

Frequently Asked Questions