Storage Unit Size Guide – Choose the Right Unit for Your Belongings

Staring at a wall of storage unit options can feel overwhelming. Do you need a 5x5 or a 10x15? The answer depends on what you’re storing and how you pack it. In this guide we’ll walk through the most common sizes, explain what typically fits in each, and share simple tricks to squeeze the most out of any unit.

Common Storage Unit Sizes and What They Hold

5x5 (25 sq ft) – Think of a small walk‑in closet. You can fit a few boxes, a mattress, or a compact sofa. It’s great for seasonal items, a single bedroom’s worth of clothes, or a bike.

5x10 (50 sq ft) – This is about the size of a studio apartment’s living area. Two to three boxes of books, a queen‑size mattress, a small dining table, or a couple of chairs will fit comfortably.

10x10 (100 sq ft) – A popular mid‑size choice. You could store the contents of a one‑bedroom apartment: sofa, TV stand, a king‑size mattress, and several boxes. If you stack wisely, even a small dining set can squeeze in.

10x15 (150 sq ft) – Roughly the footprint of a two‑bedroom flat. Expect to fit two sofas, multiple mattresses, a dining table with chairs, and a good amount of boxes. This size is ideal for moving or long‑term storage of a full household.

10x20 (200 sq ft) and larger – These are the big guys. Full‑house moves, office equipment, or large furniture collections belong here. You can park a car inside a 10x20 and still have room for boxes around it.

Pro Tips to Maximise Any Unit

Plan your layout first. Sketch a quick floor plan on paper or your phone. Mark where the door is and picture the biggest items against the walls. This prevents wasted trips and guessing.

Use uniform boxes. Same‑size boxes stack neatly, saving space and making it easier to see what’s inside.

Stack vertically. Place heavier items like books at the bottom, then lighter boxes on top. A sturdy pallet can protect floors and give you a solid base.

Disassemble furniture. Take apart bed frames, table legs, and shelf units. You’ll shave off inches that add up to a full box of space.

Fill gaps. Stuff socks, linens, or smaller items into empty corners. Every inch counts.

Finally, label each box with its contents and the room it belongs to. When you finally pull the unit apart, you’ll know exactly where everything goes, saving you time and sanity.

Choosing the right storage unit size isn’t a mystery. Match your biggest items to the dimensions listed above, apply a few packing tricks, and you’ll have a tidy, efficient space that protects your stuff. Need more help? Our team at Cozy Cove Home Goods can recommend the perfect size based on what you plan to store. Happy packing!