From 5x5 to 10x20: Which Storage Unit Size Fits Your Stuff?

Choosing a storage unit gets much easier once you stop thinking about square footage alone and start thinking about what actually needs to fit through the door. A few boxes and seasonal items call for a very different space than furniture from several rooms. At Apple Self Storage, available dimensions vary by property, so it’s important to check the location you plan to use before deciding. You can compare storage options in New Brunswick to see current locations and availability. In this guide, we focus on four of the most useful reference points: 5x5, 5x10, 10x10, and 10x20. In our network, we offer units beginning around 5x5, with larger spaces available at many locations, though exact dimensions differ by facility.

Start With What You’re Actually Storing

Before choosing a unit, make a rough inventory. Large furniture and appliances usually determine how much floor space you need, while boxes, bins, and smaller belongings can be stacked more efficiently. Think about access too. If everything is going into storage until a move is complete, you can pack more densely. If you’ll retrieve seasonal clothing, files, tools, or business supplies regularly, leave enough room to reach those items without unloading half the unit. It also helps to measure unusually large pieces before renting. Sofas, mattresses, dining tables, shelving, and appliances are harder to accommodate than a stack of uniform boxes. Knowing those dimensions gives you a much better starting point than estimating by room count alone.

5x5 Storage Unit: Small Footprint, Useful Extra Space

A 5x5 unit has roughly 25 square feet of floor area before accounting for unit height and any variations at the individual facility. It’s one of the smaller standard sizes and works best when you need extra closet-like space rather than somewhere to put the contents of an entire room. Seasonal decorations, boxes, luggage, sports equipment, small household pieces, and personal belongings are sensible candidates. It can also work well when you’re clearing a crowded closet or putting away items that only come out during part of the year. Packing vertically matters in a unit this size. Use sturdy boxes or bins that stack safely, put heavier containers at the bottom, and keep anything you’ll retrieve regularly near the front. Our guide to avoiding expensive packing mistakes has more advice if you’re preparing a larger group of belongings for storage.

5x10 Storage Unit: More Room for Furniture

At roughly 50 square feet of floor area, a 5x10 doubles the footprint of a 5x5 while keeping a relatively narrow shape. That additional length changes what you can realistically store. This is where furniture becomes easier to accommodate alongside boxes and bins. Depending on the dimensions of your belongings, a 5x10 may work for a mattress set, small furniture pieces, chairs, lamps, seasonal equipment, and packed household goods. A 5x10 can be particularly useful during a smaller move or a gradual decluttering project. Instead of filling a spare room or garage with things you’ve already sorted, you can move those belongings out while keeping the amount of rented space fairly modest.

10x10 Storage Unit: A Flexible Mid-Sized Option

A 10x10 gives you approximately 100 square feet of floor space. Its squarer footprint also makes it easier to arrange furniture and boxes without creating one long, narrow stack. This size gives you more flexibility for furniture, mattresses, boxed belongings, appliances, and other household items. It’s worth considering during a move, renovation, or substantial decluttering project when the smaller units would require too much stacking or disassembly. If you’re renovating, think beyond capacity. Construction dust and furniture don’t mix particularly well, and having a separate place for belongings can clear working space inside the house. Our article on using temporary storage during a home renovation explains how storage can fit into that process.

10x20 Storage Unit: Room for a Much Larger Load

A 10x20 provides about 200 square feet of floor area, making it four times the footprint of a 5x10. At this point, planning the layout becomes as important as choosing the unit. Larger furniture, appliances, mattresses, boxed household goods, and substantial quantities of personal or business property can fit into this type of space, depending on individual item dimensions. Some Apple Self Storage facilities list units up to this size or larger, but availability varies, so confirm the exact dimensions at your preferred property. Leave an aisle if you expect to visit the unit during the rental period. A 10x20 packed completely from front to back may hold more, but the box you need later could end up behind several large pieces of furniture.

How to Use the Space You Rent

Whichever size you choose, packing decisions affect usable capacity. Put heavier boxes at the bottom of a stack and lighter ones above them. Label containers on more than one visible side so you don’t have to rotate every box to identify it. Furniture also deserves some planning. Clean and dry pieces before storage, protect surfaces appropriately, and avoid balancing heavy containers on furniture that wasn’t designed to carry them. Keep frequently used belongings toward the front. Seasonal items you won’t need for months can go farther back, while documents, tools, clothing, or inventory you expect to retrieve should stay accessible.

Don’t Assume Every Location Has the Same Sizes

Apple Self Storage operates properties across Ontario, Nova Scotia, and New Brunswick, and inventory isn’t identical from one facility to another. Our units typically start around 5x5 and extend to 10x25 or larger, but the actual selection depends on the location. That difference matters if you have a firm move date or an unusually large item. Check the individual facility’s current unit list rather than planning around a size that may not be available there. For example, our storage options in Ontario include properties across communities such as Guelph, Kingston, London, Barrie, Aurora, Collingwood, and many others. The new Apple Self Storage facility in Woodbridge is another useful example of how individual properties and their offerings should be considered separately rather than assuming every site has an identical layout.

Choose the Unit Around the Load

The right unit is the one that gives your belongings enough room without leaving you paying for a large amount of unused space. Start with your biggest pieces, estimate your boxes and bins, then decide whether you need an aisle for regular access. You can also explore storage options in Nova Scotia and compare the sizes currently offered at individual properties.