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Storage Calculator

Watch this quick video for a general idea of our storage unit sizes:

Unsure about the amount of space you need in your storage unit? Don’t worry, Rent-A-Space has you covered with our user-friendly storage unit size calculator! Find the ideal storage unit size for your belongings by listing the items you plan to store. We’ve simplified the process to ensure your storage experience is seamless and stress-free.

Using Our Storage Unit Size Calculator

  1. List all the items you plan to store.
  2. The unit calculator at the bottom of the page will estimate the total volume of your items in cubic feet.
  3. Based on this volume, it will suggest the most suitable unit size for you.

Unit Size Guide from Rent-A-Space Storage

Small Storage Units

  • Ideal for clearing clutter from your attic or basement.
  • Great for storing seasonal items like holiday decorations or winter gear.
  • Comfortably fit the contents of a single bedroom, including a full-sized mattress and several boxes.
  • Remember to measure large items like desks and dressers to confirm they’ll fit.

Medium Storage Units

  • Perfect for more extensive decluttering projects or larger seasonal storage.
  • Suitable for holding items from multiple rooms or small apartments.
  • Accommodate items like furniture sets, bicycles, and multiple boxes.
  • Ensure to measure bulkier pieces to guarantee a comfortable fit.

Large Storage Units

  • Ideal for storing contents from an entire house, including large furniture and appliances.
  • Great for business inventory or during life’s transitions like moving or renovations.
  • Fit significant items such as couches, beds, tables, and large boxes.
  • Double-check measurements of oversized items for a perfect fit.


Found the perfect storage unit size for your needs? Take a look at our online storage rental guide for an easy booking experience. If you’re already familiar with the process, you can go straight ahead and rent your storage unit right here!

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Source: Self Storage Association