What Size Storage Unit Do I Need?
Size guide by bedroom count. Dimensions, what fits in each unit, climate control requirements, and monthly costs by region.
Updated 2026-11-09
Storage Unit Sizes at a Glance
Standard unit sizes, capacity, and what household they accommodate. Costs are national averages for 2025 to 2026.
| Size | Area | Monthly Cost |
|---|---|---|
| 5x5 | 25 sq ft | $40 - $80 |
| 5x10 | 50 sq ft | $60 - $120 |
| 10x10 | 100 sq ft | $90 - $180 |
| 10x15 | 150 sq ft | $120 - $230 |
| 10x20 | 200 sq ft | $150 - $280 |
| 10x25 | 250 sq ft | $180 - $350 |
| 10x30 | 300 sq ft | $200 - $400 |
Climate Control: When You Need It
Climate-controlled units maintain 55 to 80 degrees Fahrenheit with managed humidity. They cost 25 to 50% more than standard units. Here is what needs climate control and what does not.
| Item Category | Needs Climate Control? |
|---|---|
| Wood furniture | Yes |
| Electronics | Yes |
| Leather goods | Yes |
| Musical instruments | Yes |
| Artwork and photographs | Yes |
| Metal tools and equipment | No (if dry climate) |
| Plastic bins, outdoor gear | No |
Monthly Cost by Region
Storage costs vary significantly by metro area. These are average monthly rates for standard (non-climate-controlled) units.
| Region | 10x10 / month | 10x20 / month |
|---|---|---|
| Northeast (NYC, Boston, DC) | $150 - $230 | $220 - $380 |
| Southeast (Atlanta, Charlotte, Miami) | $90 - $140 | $140 - $220 |
| West Coast (LA, SF, Seattle) | $140 - $220 | $200 - $350 |
| Midwest (Chicago, Minneapolis, Columbus) | $80 - $150 | $130 - $230 |
| Southwest (Phoenix, Dallas, Denver) | $85 - $140 | $130 - $220 |
Tips to Reduce Storage Size (and Cost)
Disassemble everything
Remove table legs, bed frames, and shelving. A disassembled bed frame takes up 60% less space than an assembled one. Keep hardware in labeled bags taped to the furniture piece.
Use furniture as storage
Pack linens, towels, and soft items inside dressers, washing machines, and wardrobes. Fill suitcases with clothing. Every cubic foot of air inside furniture is wasted space.
Stack floor to ceiling
Most storage units are 8 feet tall. If you only stack 4 feet high, you are paying for 50% empty space. Use uniform boxes and stack heaviest on the bottom. A well-packed 10x10 holds as much as a poorly packed 10x15.
Sell before storing
A 10x10 unit at $150 per month costs $1,800 per year. If you are storing a $300 couch and a $200 bookshelf, you will spend more on storage in one year than replacing them. Calculate the break-even point before committing.
Self-Storage vs Mover Storage
Cost
30 to 50% cheaper. Month-to-month rates.
Higher cost. Often bundled with moving charges.
Access
24/7 access to your unit. You have the key.
Limited or no direct access. Must schedule with mover.
Best for
Local moves, long-term storage, frequent access needs.
Long-distance moves with staggered delivery dates.
Loading
You or your movers load the unit.
The moving company loads items into warehouse vaults.
Insurance
You arrange separate storage insurance.
May be covered under your moving valuation.
Frequently Asked Questions
What size storage unit do I need for a 2-bedroom apartment?+
How much does a 10x10 storage unit cost per month?+
Do I need a climate-controlled storage unit?+
Is it cheaper to rent a bigger unit or two smaller ones?+
How do I maximize space inside a storage unit?+
What is the difference between self-storage and mover storage?+
Should I get storage insurance?+
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