How to Pick the Right Storage Unit Size Without Guessing

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December 12th, 2025

Many people have no idea what size storage unit they actually need—and that’s totally normal. The last thing we want is for you to overestimate and end up paying more than necessary. Below are some simple tips to help you choose the perfect unit size for your needs.

Start With the Basics

The size you need depends on how much you have and how large those items are. As a general guideline:

5×5: Great for closets, décor, and seasonal items
10×15: Ideal for 2–3 rooms worth of furniture
When in doubt, size up—especially if you want easier access to your things

Step 1: Take Inventory & Visualize Your Space

Measure larger items
Group smaller items together
Make a simple list of everything you plan to store

This helps you understand your total volume and avoid surprises on move-in day.

Step 2: Match Your Items to Unit Size Guides

Small Units (5×5 — 25 sq. ft.) Perfect for boxes, small décor, seasonal items, or outdoor gear.

Medium Units (5×10 — 50 sq. ft.) Great for a one-bedroom apartment, small furniture, bikes, and stacked boxes.

Large Units (10×10 — 100 sq. ft.) Ideal for a two-bedroom home, larger furniture, and appliances.

Extra-Large Units (10×15 — 150 sq. ft.) Holds the contents of a 2–3-bedroom home or a large family’s belongings.

Step 3: Think About Access & Stacking

Most storage units are about 8 feet tall, which gives you plenty of room to stack.

Place less-used items toward the back
Keep frequently used items near the door
Use the vertical space to maximize your square footage

Final Tip: Don’t Undersize Your Unit

People often underestimate how much space they need. Choosing a slightly larger unit can save you time, frustration, and multiple trips in the future.

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