How to Pack a Self Storage Unit Properly

How you pack your self storage unit makes a surprisingly large difference. Done well, you can fit far more into a smaller space, keep everything in good condition, and still find what you need months later. Done badly, you end up with a stack of boxes you cannot reach, furniture with scratches, and a vague sense that everything is in there somewhere.

This is the practical guide we give our own customers when they first move in. It works whether you are storing a few boxes from a renovation or the entire contents of a four-bedroom home.

Start with the Right Supplies

Good packing starts with the right materials. You do not need anything fancy, but mixing reused supermarket boxes with cheap tape rarely ends well. From our on-site box shop, the essentials are:

• Sturdy cardboard boxes in two or three matching sizes for easier stacking
• Heavy-duty packing tape for the seams
• Bubble wrap and packing paper for fragile items
• Furniture covers or old blankets for sofas, mattresses, and timber furniture
• A roll of plastic stretch wrap for keeping drawers shut and cushions in place
• Permanent markers for labelling

Spending an extra twenty dollars on proper supplies almost always pays for itself in time saved and damage avoided.

Pack Heavy Things in Smaller Boxes

The biggest mistake people make is putting heavy items (books, tools, kitchenware) into large boxes. They become unmanageable to carry and the cardboard collapses under its own weight.

Reverse it. Heavy items go in small boxes, light items go in large boxes. Your back will thank you on moving day, and the stacks will stay structurally sound for months.

Disassemble What You Can

Beds, tables, shelving, and modular furniture all take less space (and less of a beating) when broken down. Keep the screws and fittings in a labelled zip-lock bag taped to the relevant piece, so reassembly is straightforward later.

Stand mattresses on their long edge against a wall rather than laying them flat. Cover them with a proper mattress bag to keep dust off. Same with sofas: cover them, stand them up where practical, and the unit holds a great deal more.

Protect Fragile and Sentimental Items

Anything breakable, valuable, or sentimental deserves a moment of extra care:

• Wrap each plate, glass, and ornament individually
• Pack glassware vertically rather than stacked flat, like records in a sleeve
• Fill every gap inside boxes so things cannot shift in transit
• Label fragile boxes clearly and stack them last so they end up on top
• Frame mirrors and artwork upright between layers of bubble wrap, never flat

Photographs, documents, and electronics also benefit from being grouped together rather than spread across multiple boxes. You will be glad of it when you need to find one specific thing.

Plan Your Layout Inside the Unit

This is the part most people skip, and it makes the biggest difference. Before you start moving boxes in, picture where everything will go.

The basic principles:

1. Heavy and bulky items go to the back and bottom. Furniture, appliances, and large boxes form the foundation.
2. Stack upward, not just outward. Modern storage units have proper height. Use it.
3. Leave an aisle. A narrow walkway down the middle means you can reach the back without rebuilding the entire unit.
4. Put things you might need soon at the front. Seasonal items, paperwork, or anything you might come back for in the first month or two.
5. Hollow items can hold smaller items. Drawers, wardrobes, and washing machines are wasted as empty space. Fill them.

Label, Label, Label

You will not remember what is in box 17. Label every box on at least two sides (top and side) with a one-line description of the contents and the room it came from. For larger items, a sheet of paper taped to the side works fine.

Some customers also keep a quick inventory list on their phone, photographing each box as they pack it. It takes ten extra seconds and saves an hour of hunting later.

Protect Against Damp and Pests

At a quality facility this is rarely an issue, but a few habits help:

• Wipe everything dry before packing, especially appliances
• Leave fridge and freezer doors slightly ajar
• Avoid sealed plastic bags for clothing or fabric (they trap moisture)
• Keep nothing edible in your unit, even sealed
• Lift boxes off the bare floor with a pallet or wooden strip if you are storing for a very long period

Finishing Touches

Before you lock up for the last time, walk through the unit and double check:

• Heavier boxes are on the bottom, lighter on top
• Nothing is leaning against the door
• Aisle is clear and reaches the back
• Padlock is properly fastened

That is it. A well-packed unit will sit happily for as long as you need it.

Frequently Asked Questions

What is the cheapest way to pack a storage unit?

Plan your layout before you move in, use matching box sizes for stacking, and fill the inside of furniture. The space saving alone can let you rent a smaller unit and save more than the cost of supplies.

Can I store mattresses in self storage?

Yes. Use a proper mattress bag, stand it on its long edge, and avoid laying anything heavy on top.

How do I keep items in good condition long term?

Clean and dry everything before packing, cover wooden furniture, and avoid sealed plastic for fabrics. A well-built facility handles the rest.

Do you sell packing supplies on site?

Yes. Every All Secure facility has a fully stocked box shop with boxes, tape, bubble wrap, covers, and locks.

Packing well makes the rest of your storage experience easy. Talk to the All Secure team if you would like a hand planning your unit before you move in.