Storage space calculator

Count what you're putting away and see which unit size it fits into.

Total volume 0ft³ Tightly packed
Recommended unit Add items to see a size

This is more than a single 10×20 unit holds. You'll likely need a second unit.

Common questions

What is self-storage?

A rented, lockable space for belongings you don't have room for at home or at work. Units come in a range of sizes and are usually rented month to month, so you can leave when you no longer need the space.

Who typically uses it?

Homeowners and renters mid-move, people renovating, students between terms, and small businesses storing stock, records, or equipment. Anyone needing space for longer than a garage can spare.

Which unit size is rented most often?

The 5×10 is the most common, making up roughly a quarter of rentals according to SpareFoot's 2023 figures. The 10×10 is close behind and tends to suit the contents of a one- or two-bedroom apartment.

How secure are storage facilities?

Most offer gated access, cameras, individual locks, and lit corridors. Some add on-site staff during business hours and per-unit alarms. Security varies between facilities, so it's worth asking what's included before signing.

Do I need insurance?

Usually yes, and some facilities require it. Check your existing home or renter's policy first — off-site storage is sometimes already covered. If it isn't, facilities generally sell a plan at the time of rental.

How accurate is this estimate?

It's a planning figure, not a guarantee. Volumes are based on standard furniture dimensions and assume you can stack efficiently. Awkward shapes, items you need frequent access to, and walkways all eat into usable space, so confirm the size with the facility before you rent.