What Size Storage Unit Do I Need? A Simple Guide

Published on 9/21/2026
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What Size Storage Unit Do I Need? A Simple Guide

Choosing a storage unit can feel a little overwhelming, especially if you've never rented one before. You don't want to pay for more space than you need-but you also don't want to get halfway through moving your belongings and realize your unit is too small.

At Hideaway Storage in Waterloo, Wisconsin, we want to make choosing the right storage unit simple. Here's a quick guide to help you decide which size may work best for you.

Start With What You Plan to Store

Before choosing a unit, take a quick inventory of what you'll be storing. Are you clearing out a few closets, storing furniture during a move, or looking for extra space for the contents of your home?

It also helps to think about how you'll use the unit. If you plant to visit regularly, leaving a small walkway can make it much easier to reach items in the back without having to unload everything.

10x10 Storage Unit

A 10x10 unit provides approximately 100 square feet of floor space and is one of the most versatile storage unit sizes.

A 10x10 may work well for:

*Furniture from multiple rooms
*Mattresses and bedroom sets
*Appliances
*Boxes and household belongings
*Items from a small apartment
*Belongings during a move or remodeling project

If you're unsure whether a smaller unit will provide enough room, a 10x10 can give you additional flexibility for stacking boxes and organizing your belongings.

10x15 Storage Unit

A 10x15 unit provides approximately 150 square feet of floor space and gives you considerably more room for larger storage needs.

A 10x15 may work well for:
*Furniture from several rooms
*Large appliances
*Dining room and living room furniture
*Multiple mattresses and bedroom sets
*Boxes, totes, and household belongings 
*Items being stored during a larger move or renovation

This size can be a good choice when you're storing a significant portion of your household and want some extra room to keep things organized.

10x20 Storage Unit

A 10x20 unit provides approximately 200 square feet of floor space and is designed for larger storage needs:

A 10x20 may work well for:

*Contents from a multi-bedroom home
*Large furniture and appliances
*Moving and remodeling storage
*Business inventory or equipment
*Large quantities of boxes and household belongings 

If you're moving, downsizing, or need long-term storage for a large amount of belongings, a 10x20 gives you plenty of flexibility.

Don't Forget About Vertical Space

One of the easiest ways to get more out of your storage unit is to think vertically.

Use sturdy, stackable boxes or totes and place heavier items on the bottom. Furniture that can safely be disassembled may also take up much less room.

Just remember to keep anything you may need frequently toward the front of the unit.

When In Doubt, Ask Us

Every storage situation is different. Two people moving out of similar-sized homes may need completely different amounts of storage depending on their furniture, belongings, and how efficiently everything is packed.

That's why we're happy to help.

If you're not sure which unit size is right for you, give Hideaway Storage a call at 920-988-9077. Tell us a little about what you're planning to store, and we'll help you determine which of our available units may be the best fit.

Simple, Hassle-Free Storage Close to Home

Hideaway Storage provides convenient self-storage right here in Waterloo, Wisconsin. With easy online rentals, 24/7 access, security features, and convenient local location, getting the extra space you need doesn't have to be complicated.

Ready for more space?


View our available storage units and rent online in minutes or call 920-988-9077 with any questions.

Hideaway Storage
Waterloo, Wisconsin
920-988-9077

Simple, hassle-free storage close to home.