Size Estimator

Drag the bar from left to right to increase or decrease the amount of storage space required and to see what you can fit into that space.





Extra Large

25 sq ft unit (8 ft high)

One of the most important considerations when renting a storage unit is finding the right size. You want to ensure you have enough space to store all your belongings without paying for extra room. But how do you determine what size storage unit you need? 

Renting a storage unit that is too small will result in a cramped space where you can’t easily access your items—on the other hand, renting a unit too large means paying for unused space. By finding the perfect size, you can optimise your storage experience and make the most out of your rental.

Using our Size Estimator

We have developed a user-friendly estimator tool to help you determine the ideal storage unit size you need. Our storage unit size estimator is a visual guide that will give you a clear idea of the space you need and help you make an informed decision.

Remember that the calculator is a guide, and the actual size you need may vary slightly based on the dimensions of your items.

Use the size estimator below to get an idea of what size unit you need. You can always upsize or downsize your unit, as and when your situation changes, with no commitment to a particular size, subject to availability.

If you need more help, please contact our customer service team for further advice and help.


Frequently Asked Questions

How do you calculate how much storage space you need?

To calculate how much storage space you need, you must work out the approximate square footage of your belongings by multiplying their length and width. You can either measure items individually or put them in a pile and measure the pile. 

However, the easiest way to calculate your storage space needs is by using an online size estimator.


  • Stacking your belongings or storing items like furniture on its side, will give you more space
  • Did you know the smaller the size the less it costs?
  • Stack high! Our units are sized by the area of the floor space and are all at least 8 feet high.
  • There's no commitment - you can change sizes as you need, at any time, at no extra cost
  • The image is representive of the size of the unit. Exact dimensions may vary.
  • 9 sq ft lockers are only 3 ft high. 12 ft lockers are only 4 ft high.

If you need more help, please contact our customer service team for further advice and help.

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