10 Common Mistakes People Make When Using a Storage Unit (and How to Avoid Them)

Using a storage unit can be a game-changer—whether you’re decluttering, moving house, or just need extra space for your gear. But it’s surprisingly easy to get it wrong. From disorganised boxes to choosing the wrong size unit, we see the same mistakes again and again.

Here’s a list of 10 common self storage mistakes—and how to avoid them so your experience is smooth, secure, and stress-free.

1. Choosing the Wrong Size Unit

One of the biggest (and most frustrating) mistakes is picking a unit that’s too small. You either end up shoving things in haphazardly or having to rent a second unit.

Out of Space Tip: Have a quick chat with our team—we’ll help you choose the perfect fit based on what you’re storing.

2. Not Labelling Boxes

You think you’ll remember what’s in that plain brown box... until you don’t. Months later, you’re tearing through every container looking for one item.

How to fix it: Use big, clear labels on all sides. Go one better and make a master list of what’s in each box so you can find things fast.

3. Packing Without a Plan

Packing randomly wastes space and increases the risk of damaging your stuff. Without a strategy, your unit can quickly turn into a giant, unmanageable mess.

How to fix it: Pack heavy items on the bottom and lighter ones on top. Stack boxes by category (kitchenware, clothing, books, etc.). Leave a narrow aisle so you can access items without unpacking everything.

4. Storing Prohibited or Hazardous Items

Certain things just don’t belong in a storage unit—like paint, petrol, food, or anything flammable. These items can cause damage, attract pests, or even break safety rules.

How to fix it: Check with your storage provider (like us!) for a list of prohibited items before you start loading your unit.

5. Not Using Shelving or Storage Aids

Stacking boxes on top of each other works—until it doesn’t. Things get crushed, fall over, or you lose access to what’s at the bottom.

How to fix it: Use freestanding shelves or modular racks to maximise vertical space and keep things organised. It makes a huge difference.

6. Forgetting to Protect Furniture and Fragile Items

Furniture left exposed can get scratched, dented, or dusty. Glass, ceramics, or electronics can easily break without proper care.

How to fix it: Wrap furniture with moving blankets, use bubble wrap for delicate items, and always store mattresses in protective covers.

7. Not Insuring Your Belongings

While we do everything to keep our storage sites secure, accidents can still happen—storms, leaks, or the unexpected.

How to fix it: Check whether your contents insurance covers off-site storage.

8. Losing Track of What’s in Storage

Without a proper inventory, it’s easy to forget what’s in your unit—or worse, double-up on things you already own.

How to fix it: Keep a digital or physical list of all the items you’ve stored. Include box numbers, categories, and any high-value items.

9. Not Making the Most of Facility Features

From trolleys and drive-up access to state of the art security, modern storage facilities like Out of Space Storage are designed to make life easier—but not everyone takes advantage of what’s available.

How to fix it: Ask what’s included when you sign up, and use the tools and services on offer to make your move-in and access experience a breeze.

10. Poor Placement of Frequently Used Items

Ever needed something urgently—only to find it’s buried at the back of your unit under a stack of heavy boxes?

How to fix it: Store seasonal or high-use items near the front. Think Christmas gear, sports equipment, or documents you might need unexpectedly.

Final Thoughts

Avoiding these simple mistakes can make your storage journey smoother, safer, and far less stressful. Whether you’re a first-timer or a seasoned storer, a bit of planning goes a long way.

At Out of Space Storage, we’re here to help every step of the way. From choosing the right unit to making the most of your space, our friendly team is only a call or click away.

Ready to get started? Check out our storage options or get in touch with us today.