Storage Outlet

Storage Unit Size Guide

Not sure how much space you need? Compare our storage unit sizes, from small lockers to 10x30 units that hold a whole house. Watch a quick video tour of each size, see what fits, and reserve online in minutes.

Before you choose

How to Choose the Right Storage Unit Size

1

List what you're storing.

Count the furniture, appliances and boxes. Note anything long or tall, like a sofa or a mattress.

2

Match it to a room.

Each unit below is compared to a familiar space: a closet, a bedroom, or a one-car garage.

3

Leave room to move.

Allow space for a walkway so you can reach items at the back. If you're between two sizes, the bigger one is usually the better choice.

Size guide

Pick a size to see what fits

Unit sizes are approximate and can vary by facility.

Storage Lockers video tour Video tour

Storage Lockers

Lockers

Our smallest option, for things you want out of the way but easy to reach. Lockers hold a few boxes, files, seasonal decorations, or sports gear.

Best for:

  • Dorm overflow
  • Business documents
  • Holiday decor
Does this size sound like the right fit? Reserve online in minutes, or call (888) 809-0076.
Find a Storage Locker

Storage Unit Size Comparison Chart

Size Square feet Compares to Typically holds
5x5 25 Hall closet One closet's contents
5x10 50 Walk-in closet A studio apartment
10x10 100 Half a one-car garage A one-bedroom apartment
10x15 150 Large bedroom A two-bedroom home
10x20 200 One-car garage A three-bedroom home
10x30 300 Longer than a one-car garage A four- or five-bedroom home

Unit sizes are approximate and may vary by location.

Storage 101

Visualize Your Storage Space

Boxes are hard to picture. Washers, fridges and shoeboxes aren't. Pick a unit size and an everyday object to see roughly how many fit.

Storage unit illustration

How many washing machines could you fit?

about 0 washing machines fit in a 10x10

Practical estimate
10' × 10' · 100 sq ft 3.0 × 3.0 m · 9.3 m²
1. Pick a unit size
2. Pick an everyday object

How we estimate

    Unit sizes and counts are approximate and may vary by location.

    Storage tips

    Packing Tips to Make the Most of Your Unit

    Use boxes of the same size so they stack safely.

    Put heavy items low and light ones on top.

    Stand mattresses and sofas on end to save floor space.

    Take apart bed frames and tables, and bag the hardware.

    Leave a center aisle so you can reach everything.

    Label every box on at least two sides.

    More ideas: Packing and Storage Tips

    FAQs

    Storage Unit Size FAQs

    What size storage unit do I need for a one-bedroom apartment?

    A 10x10 fits most one-bedroom apartments. If you have a lot of boxes, a 10x15 gives you more room.

    Are the unit sizes exact?

    No. Unit sizes are approximate and can vary by facility.

    What can't I store?

    Hazardous materials, flammables, perishable food, and anything alive. Your rental agreement has the full list.

    How do I reserve a unit?

    Search by ZIP or city, choose a size, and reserve online. You can also call (888) 809-0076.

    Still Not Sure What Size You Need?

    Call (888) 809-0076 and our team will help you choose, or find a unit near you.