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Whether you’re preparing for a move, decluttering your home, storing business inventory, or simply making space for a new chapter in life, renting a storage unit can make the process much easier. 

But one of the most common questions people ask is: “What size storage unit do I need?”

At Don Temple Storage, we’ve helped thousands of Long Beach residents find the right unit. That means not too small that it doesn’t fit everything, and not so large that you’re paying for space you don’t need. 

Choosing the right size from the start helps you stay organized, protect your belongings, and avoid unnecessary costs.

This guide walks you through the most popular storage unit sizes, what fits inside each one, and how to estimate the right amount of space before you rent.

Why Choosing the Right Storage Unit Size Matters

The size you choose affects:

• Your monthly cost
• How easy it is to access your items
• How well your belongings are protected from damage
• How efficiently you can pack and organize your space

According to the Self-Storage Association, American households are increasingly using storage year-round, not just during moves, making it essential to choose the right layout and size for long-term convenience.

If you go too small, you may have to stack items too tightly, increasing the risk of breakage. Go too large, and you may waste money on unused space. We’re here to help you strike the perfect balance.

Step 1: Take Inventory of What You Plan to Store

Start with a list, even if it’s quick:

• Boxes (estimate by room)
• Furniture (bed frames, tables, dressers, chairs)
• Appliances (microwave, washer/dryer, fridge)
• Business items (inventory, file cabinets)
• Seasonal items (holiday décor, sports gear)

The U.S. Census Bureau notes that most moves and storage needs correlate with life transitions, such as moving to a new city, downsizing, renovating, or welcoming a new family member.

A quick inventory helps make those transitions smoother and prevents surprises on move-in day.

Step 2: Compare Standard Storage Unit Sizes

At Don Temple Storage, we offer unit sizes that range from small closet-style spaces to large, commercial-capacity storage. 

 

Use this guide to match your vehicle load or household size with the right storage unit:

 

Unit Size	Best For	Approx. Capacity	Sq. Ft.
4×6 (UL)	Boxes, suitcases, or seasonal decor	Small hall or closet contents	24 sq. ft.
6×6 (UL)	Personal items, hobby supplies, or small bedroom storage	Slightly larger closet	36 sq. ft.
4×6 (LL)	Miscellaneous household storage	Studio overflow items	24 sq. ft.
6×6 (LL)	Small furniture, tote bins, or work supplies	Small walk-in closet	30 sq. ft.
6×7 (LL)	1 furnished room	1 room of household items	42 sq. ft.
6×8 (LL)	2-room apartment	Bedroom + living essentials	48 sq. ft.
6×9 (LL)	2 rooms of furniture	Larger apartment or shared home	54 sq. ft.
6×10 (LL)	2 rooms of furniture + appliances	Ideal for small households	60 sq. ft.
6×12 (LL)	3 rooms of items	Multi-room storage	72 sq. ft.
8×12 (LL)	4 rooms of storage	Families or downsizing	96 sq. ft.
6×18 (LL)	5 rooms of household contents	Small home storage	108 sq. ft.
12×12 (LL)	7 rooms of furnishings	Larger home storage	144 sq. ft.
10×20 (LL)	8+ rooms or renovation storage	Entire home during move	200 sq. ft.
12×18 (LL)	8 rooms + bulky furniture/equipment	Great for long-term home storage	216 sq. ft.
12×26 (LL)	Large household or commercial equipment	15 rooms of storage	312 sq. ft.

Quick Way to Estimate Your Size Needs

 

Household Size	Recommended Unit Size
1-2 Rooms	6×7 to 6×10
2-3 Rooms	6×12 to 8×12
4-6 Rooms	6×18 to 12×12
Full Home / Large Storage	10×20, 12×18, or 12×26

 

This makes it easy to choose without over- or under-estimating your space.

Step 3: Leave Room for Walking Space

It’s not just about fitting items inside. It’s also about being able to reach them later.

 

When planning your unit:

 

• Place large furniture in the back or against walls
• Store frequently-used items near the front
• Leave a walkway through the center
• Label boxes clearly on multiple sides

 

This makes your storage space functional, not just full.

Step 4: Consider Climate & Material Sensitivity

If you’ll be storing:

• Electronics
• Wooden furniture
• Musical instruments
• Artwork
• Photos or documents

 

These items benefit from stable temperature and humidity. Ask our team whether climate-friendly storage recommendations apply to your specific items. We’ll guide you to the best type of unit.

Step 5: See the Units in Person (If Possible)

Sometimes visuals help more than measurements alone. You’re always welcome to tour our facility and see different unit sizes before deciding.

 

View available unit types here for more information.

Final Thoughts

Choosing the right storage unit doesn’t have to be complicated. By estimating your space needs, understanding standard unit sizes, and planning your layout ahead of time, you’ll save time, money, and stress.

At Don Temple Storage, we make storage simple, secure, and local, right here in the heart of Long Beach. Whether you’re preparing for a move or simply clearing space to breathe easier, we’re here to help you every step of the way.

 

Call us today!