How to Choose the Right Storage Unit Size for Your Needs

Josh Summerhays • December 13, 2025

Not sure which storage unit size is right for you? At Alliance Self Storage, we understand that everyone’s storage needs are different. Choosing the right unit size can help you save money and ensure your belongings are stored safely and efficiently.

If you’re looking for a convenient place to store your belongings, Alliance Self Storage offers secure unit options at our Corvallis and Springfield locations.

Here’s a simple guide to help you find the perfect fit.

5x5 Storage Unit – Compact & Convenient

Think of it as a small walk-in closet. This size is ideal for:

Boxes of books, clothes, or seasonal items
Small furniture like chairs or end tables
Office supplies or business documents

Perfect for: Students, minimal storage needs, or decluttering a small space.

5x10 Storage Unit – Small Apartment Essentials

This unit is about the size of a large walk-in closet and fits:

A mattress set and small furniture
A bicycle, small appliances, or boxes
Studio apartment contents

Perfect for: Renters, college students, or storing extra household goods.

10x10 Storage Unit – Mid-Size Home Storage

Roughly the size of a standard bedroom, this popular unit holds:

Contents of a one-bedroom apartment
Larger furniture, appliances, and multiple boxes
Business inventory or office equipment

Perfect for: Moving, remodeling, or clearing out space at home.

10x15 Storage Unit – Roomy & Reliable

This larger unit provides space for:

Items from a two- to three-bedroom home
Larger items like couches, dining sets, and beds
Lawn equipment or recreational gear

Perfect for: Families or anyone needing long-term storage.

Planning to store items for a longer period? These do’s and don’ts of long-term storage can help you protect your belongings and avoid common issues over time.

10x20 and Larger – Whole Home & Vehicle Storage

Our biggest units are perfect for:

Contents of a 3-4 bedroom home
Oversized furniture, major appliances, and outdoor gear

Perfect for: Homeowners relocating, storing business inventory, or needing extra garage space.

And while you’re figuring out size, take a look at some common mistakes to avoid when renting a unit so your storage experience goes smoothly.

Not Sure What You Need?

No problem! At Alliance Self Storage, our team is here to help. We’ll walk you through your storage needs and recommend the right size based on what you’re storing. Plus, we offer flexible leases and secure, well-maintained units so you can store with confidence.