What Size Storage Unit Do I Need?
Storage unit sizes: 5x5 ($50–$90/mo) fits a closet; 5x10 ($70–$130/mo) fits a studio; 10x10 ($100–$200/mo) fits a 2BR; 10x15 ($130–$250/mo) fits a 3BR; 10x20 ($150–$300/mo) fits a 4BR.
Storage Size = Home Size x 0.5 (partial) or x 1.0 (full household)
Choosing the wrong storage unit size wastes money. This calculator helps you determine the exact size you need with current 2026 pricing from national storage chains.
What This Means
These estimates are based on national averages from licensed moving companies and industry data for 2026. Your actual costs may vary by 10–15%. Use this as a starting point and get multiple quotes.
Recommended Moving Supplies
Editor's picks to make your move easier and more affordable
Medium Moving Boxes (20-Pack)
Sturdy 18x14x12" corrugated boxes. Ideal for kitchenware, books, and general household items.
Check Price on AmazonLarge Moving Boxes (12-Pack)
Heavy-duty 20x20x15" boxes for bedding, lampshades, and bulky lightweight items.
Check Price on AmazonMoving Blankets (12-Pack)
Heavy-duty 80x72" padded blankets. Protect furniture, appliances, and floors during moves.
Check Price on AmazonMattress Bag Queen Size
Thick 4-mil plastic cover protects mattresses from dirt, moisture, and bed bugs during moves.
Check Price on AmazonStretch Wrap 5" x 1000ft
Industrial stretch film for bundling items and protecting furniture from scratches.
Check Price on AmazonAs an Amazon Associate, we may earn from qualifying purchases. This does not affect our editorial recommendations.
Storage Unit Sizes and What They Fit
| Size | Sq Ft | Equivalent | What Fits | Monthly Cost |
|---|---|---|---|---|
| 5x5 | 25 | Large closet | Boxes, small furniture | $50–$90 |
| 5x10 | 50 | Walk-in closet | Studio/1BR | $70–$130 |
| 10x10 | 100 | Half garage | 2BR home | $100–$200 |
| 10x15 | 150 | 3/4 garage | 3BR home | $130–$250 |
| 10x20 | 200 | 1-car garage | 4BR or home + vehicle | $150–$300 |
| 10x30 | 300 | 1.5-car garage | 5+ BR home | $200–$400 |
Climate-Controlled vs. Standard
| Feature | Standard | Climate-Controlled |
|---|---|---|
| Temperature | Outdoor ambient | 55–85°F |
| Humidity | Uncontrolled | 30–50% |
| Cost premium | Base rate | +20–50% |
You need climate control for: wood furniture, leather, electronics, musical instruments, artwork, photographs, and documents.
Storage Unit Packing Tips
- Disassemble furniture to maximize space
- Stack heavy boxes on bottom
- Create an aisle for access
- Put frequently accessed items near the door
- Use moving blankets over furniture
- Never store directly on the floor
Frequently Asked Questions
What size storage unit for a 2-bedroom?
10x10 (100 sq ft). With minimal furniture, 5x15 may suffice. With garage items, step up to 10x15. $100–$200/month.
What size for a 3-bedroom?
10x15 (150 sq ft). For homes with basements/garages, consider 10x20. $130–$250/month standard.
How much does a storage unit cost per month?
5x5: $50–$90, 5x10: $70–$130, 10x10: $100–$200, 10x15: $130–$250, 10x20: $150–$300. Climate-controlled costs 20–50% more. Urban areas are 30–60% more expensive.
Is climate-controlled storage worth it?
Yes for wood furniture, electronics, leather, instruments, artwork, photos. The 20–50% premium protects valuable belongings from warping, mold, and heat damage.
Can I store a car in a storage unit?
Yes. A 10x20 fits most cars. Fill the gas tank, disconnect the battery, check tire pressure. $150–$300/month.