Storage planning guide

The self storage size guide, built around what you store.

Skip the guesswork over square footage. Tell us what you are moving, whether that is one room, a full house, or a car, and this guide points you to the unit size that fits.

Start with what you store

What size storage unit do you need?

Use these common scenarios as a starting point. Leave room for walkways and check the facility's exact dimensions before you reserve.

Boxes and seasonal items storage facility
A few items

Boxes and seasonal items

5' x 5'25 sq ft

What fits: Holiday decorations, seasonal clothing, a small dresser, a chair, and a stack of boxes.

Good for clearing out a closet or storing between seasons.

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One room of furniture storage facility
One room set

One room of furniture

5' x 10'50 sq ft

What fits: A full bedroom set such as a bed frame, mattress, dresser, nightstand, and around ten to fifteen boxes.

Good for a single room during a renovation or move.

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Kitchen appliances and contents storage facility
Kitchen

Kitchen appliances and contents

5' x 5' to 5' x 10'25 to 50 sq ft

What fits: A refrigerator, stove, dishwasher, microwave, and boxes of cookware and dishes.

Good for a kitchen remodel or an appliance upgrade.

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Studio or one bedroom apartment storage facility
Popular size

Studio or one bedroom apartment

5' x 10' to 10' x 10'50 to 100 sq ft

What fits: A bed, a sofa, a dining set, appliances, and boxes.

Choose 5' x 10' for a sparsely furnished space and 10' x 10' for a full one bedroom. Good for a first move or a short-term stay elsewhere.

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Two bedroom apartment storage facility
Most rented

Two bedroom apartment

10' x 10'100 sq ft

What fits: Furniture from two bedrooms, a living room, major appliances, and boxes.

Good for a couple or a small family in transition.

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Three bedroom house storage facility
Whole home

Three bedroom house

10' x 15' to 10' x 20'150 to 200 sq ft

What fits: Furniture from three bedrooms, living and dining rooms, appliances, and garage items.

Good for a full household move or a home renovation.

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Four to five bedroom house storage facility
Large home

Four to five bedroom house

10' x 20' to 10' x 30'200 to 300 sq ft

What fits: The contents of a large home, including bulky furniture, appliances, and outdoor equipment.

Good for a large family relocation or long-term storage.

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A car or vehicle storage facility
Vehicle

A car or vehicle

10' x 15' to 10' x 20'150 to 200 sq ft

What fits: A sedan or compact car with room to walk around it. Larger vehicles need 10' x 20' or more.

Good for seasonal storage or a car you use rarely.

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Quick comparison

Storage unit size chart

Compare common unit dimensions with familiar spaces and the belongings they typically hold.

Unit sizeSquare footageComparable toTypically holds
5' x 5'25 sq ftA small closetA few boxes, seasonal decor, small furniture
5' x 10'50 sq ftA large walk-in closetOne room of furniture, a mattress set, boxes
5' x 15'75 sq ftA small bedroomA one bedroom apartment with appliances
10' x 10'100 sq ftHalf a one-car garageContents of a one to two bedroom apartment
10' x 15'150 sq ftA large bedroomContents of a two to three bedroom home
10' x 20'200 sq ftA standard one-car garageContents of a three to four bedroom house, or a car
10' x 30'300 sq ftA large one-car garageContents of a four to five bedroom house, vehicles

Note: Most units stand about 8 feet tall, so the square footage understates how much you can hold. Stacking upward with sturdy boxes lets you use the full height.

Vehicle storage

What size storage unit for a car?

For a standard sedan or compact car, a 10x15 or 10x20 unit gives you enough length to park the vehicle and still open the doors and walk around it. A 10x20 is the safer choice for larger cars, since it matches a one-car garage. For an SUV, truck, or van, plan on 10x20 or larger, and a motorcycle fits comfortably in a 5x10.

If you are storing a vehicle for several months, ask the facility whether covered or climate-controlled options are available, and confirm the driveway and door clearances before you book so your vehicle fits through the opening.

Vehicle quick reference
Motorcycle5' x 10'
Sedan or compact car10' x 15' to 10' x 20'
SUV, truck, or van10' x 20'
Larger boat or small trailer10' x 20' to 10' x 30'
Vehicle storageRoom to park, open doors, and walk around
Business storage

Storage for your business

Documents and files fit in a 5x5 or 5x10, depending on how many boxes and cabinets you need to keep on hand. Retail inventory, seasonal stock, and sample products usually call for a 10x10 to 10x20, which leaves room to shelve items and reach them easily. Equipment and larger fixtures may need 10x20 or more.

If you restock often, choose a size that lets you create an aisle down the middle. That way you can reach everything without unloading the whole unit each time you visit.

Business quick reference
Documents and files5' x 5' to 5' x 10'
Inventory and stock10' x 10' to 10' x 20'
Equipment and fixtures10' x 20' or larger
Common questions

Frequently asked storage size questions

What size storage unit do I need?

Start with what you plan to store rather than the dimensions. A few boxes fit in a 5x5. One room of furniture fits in a 5x10. A one to two bedroom apartment fits in a 10x10. You can start with a small size and usually upgrade as needed.

What is the smallest storage unit size?

The smallest common size is a 5x5, which gives you 25 square feet, about the space of a small closet. Some facilities also offer locker style units under 5x5 for a handful of boxes or documents.

What is the largest storage unit size?

The largest standard size is usually a 10x30, which gives you 300 square feet, close to a large one-car garage. It holds the contents of a four to five bedroom house along with bulky items and vehicles. Some facilities offer even larger drive-up or warehouse-style spaces.

What can fit in a 10x10 storage unit?

A 10x10 holds the contents of a one to two bedroom apartment: a sofa, a bed and mattress, a dining set, a dresser, major appliances such as a refrigerator and washer, and around thirty medium boxes. Stacking upward toward the 8-foot ceiling lets you fit more.

How do I measure what I need?

List your large furniture and count your boxes, then group everything by room. Match each group to the scenarios in this guide. Remember that most units are about 8 feet tall, so you can stack boxes and lighter items to use the full height.

Are storage units a standard height?

Most storage units have ceilings around 8 feet, which means the square footage understates how much you can hold. Stacking safely and using sturdy, uniform boxes lets you make the most of the vertical space.

How big is a 5x5 storage unit?

A 5x5 unit measures 5 feet by 5 feet, which works out to 25 square feet of floor space. With a standard ceiling around 8 feet, that gives you roughly 200 cubic feet to work with. It compares to a small closet.

How big is a 5x10 storage unit?

A 5x10 unit measures 5 feet by 10 feet, or 50 square feet, about the size of a large walk-in closet. It comfortably holds one room of furniture: a mattress set, a dresser, a few chairs, and ten to fifteen boxes. Many people choose this size for a single bedroom set or the contents of a studio apartment.

How big is a 10x20 storage unit?

A 10x20 unit measures 10 feet by 20 feet, or 200 square feet, about the footprint of a standard one-car garage. It holds the contents of a three to four bedroom house, or a car with room to spare. Choose it for a full household move or to store a vehicle indoors.

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