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Storage Unit Size Guide

Not sure what size storage unit you need? Compare every common size, see what fits in each one, and find the right unit for your move, your home or your stuff.

  • 25 - 250 sq ftFrom closet to garage size
  • 7 sizesCompared side by side
  • Free to reserveNo credit card required
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Find Your Storage Unit Size

Pick a size to see what fits, a packed example, prices near you and tips for packing it.

  • 5 x 5

    25 sq ft

    Boxes, seasonal items, a few small pieces

  • 5 x 10

    50 sq ft

    A studio's furniture or one bedroom

  • 5 x 15

    75 sq ft

    A one-bedroom apartment with few appliances

  • 10 x 10

    100 sq ft

    A furnished one-bedroom or light two-bedroom

  • 10 x 15

    150 sq ft

    A two-bedroom apartment or small house

  • 10 x 20

    200 sq ft

    A two- to three-bedroom home or a car

  • 10 x 25

    250 sq ft

    A three- to four-bedroom home

Storage Unit Size Chart

Floor area and volume assume an 8-foot ceiling. Exact unit and door dimensions vary by facility.

SizeFloor areaVolumeSimilar toTypically fits
5x525 sq ft~ 200 cu ftA small walk-in closetBoxes, seasonal items, a few small pieces
5x1050 sq ft~ 400 cu ftA large walk-in closetA studio's furniture or one bedroom
5x1575 sq ft~ 600 cu ftA small bedroomA one-bedroom apartment with few appliances
10x10100 sq ft~ 800 cu ftA modest bedroomA furnished one-bedroom or light two-bedroom
10x15150 sq ft~ 1,200 cu ftA large bedroomA two-bedroom apartment or small house
10x20200 sq ft~ 1,600 cu ftA one-car garageA two- to three-bedroom home or a car
10x25250 sq ft~ 2,000 cu ftA long one-car garageA three- to four-bedroom home

What Size Unit for Your Home?

A starting point for a typical home. Large furniture, appliances or a garage full of tools can mean one size up.

How to Choose the Right Size

Four quick steps before you reserve.

  1. 1. List what you're storing

    Group your belongings by room and note the large pieces: beds, sofas, dressers, tables and appliances.

  2. 2. Measure the big items

    Furniture that can't be stacked uses floor space fast. Measure your largest pieces and the unit's door width.

  3. 3. Plan for access

    If you'll visit often, leave room for an aisle. A slightly bigger unit is easier to load and unload.

  4. 4. Consider climate control

    Wood furniture, electronics, documents and photos are safer in a climate-controlled unit over months.

Vehicle and Specialty Storage

Storing a vehicle or belongings that need extra protection? Start here.

  • Climate Controlled Storage

    Protect furniture, electronics and documents from heat and humidity.

  • Car Storage

    Outdoor, covered and enclosed spaces for cars, trucks and motorcycles.

  • Boat Storage

    Spaces for boats on trailers, from small fishing boats to cruisers.

  • RV Storage

    Parking for motorhomes, travel trailers and fifth wheels.

Storage Unit Size FAQs

What size storage unit do I need?

Start with what you're storing rather than the number of rooms. As a rough guide, a 5x5 holds a closet's worth of boxes, a 5x10 suits a studio, a 10x10 a furnished one-bedroom, a 10x15 a two-bedroom and a 10x20 a three-bedroom home or a car. Large furniture and appliances can push you up a size.

What are the most common storage unit sizes?

The most common sizes are 5x5, 5x10, 10x10, 10x15, 10x20 and 10x30, measured in feet. Many facilities also offer in-between sizes, lockers and parking spaces, and exact dimensions vary by property.

How tall are storage units?

Most storage units have ceilings around 8 feet, which is why volume is usually estimated at the floor area times 8. Some indoor units are lower and some drive-up units are taller, so check the unit details.

Is it better to rent a bigger unit than I need?

A unit with a little extra room is easier to load, lets you leave an aisle and avoids renting a second unit later. Renting far more space than you need just adds cost, so list your items and pick the size that fits them with some room to move.

Can I fit a car in a storage unit?

A 10x20 unit fits many standard cars, and a 10x25 leaves more room for larger vehicles or extra belongings. Check the door size and whether the facility allows vehicles in enclosed units, or look at car storage parking spaces.

Do I need climate-controlled storage?

For most boxes, tools and household goods, a standard unit is fine. Climate control is worth considering for wood furniture, mattresses, electronics, documents and artwork, especially for long stays or in hot, humid areas.

Can I change unit sizes later?

Usually, yes. Most storage rentals are month to month, so you can move to a bigger or smaller unit if one is available. Ask the facility how transfers work before you move in.

How do I reserve a storage unit?

Search your city or ZIP code, compare facilities and prices, and reserve the size you want online. Reserving on StorageUnits.com is free and doesn't need a credit card; you pay the facility when you move in.

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