Storage Unit Size Calculator
Find the right storage unit size (5x5 to 10x20) by selecting furniture, appliances, and boxes.
Returns cubic footage needed and recommended unit dimensions.
Recommended Unit Size
Storage unit sizing estimates the cubic footage of your items and matches them to standard unit sizes.
Standard storage unit sizes:
| Unit Size | Sq Ft | Equivalent To |
|---|---|---|
| 5×5 | 25 | Small closet — boxes, seasonal items |
| 5×10 | 50 | Walk-in closet — 1 bedroom of furniture |
| 10×10 | 100 | Half a garage — 2 bedrooms of furniture |
| 10×15 | 150 | Large room — 3 bedrooms or small house |
| 10×20 | 200 | 1-car garage — 3-4 bedrooms or full house |
| 10×25 | 250 | Large garage — 4-5 bedrooms with appliances |
| 10×30 | 300 | Extra large — 5+ bedrooms or with vehicles |
Item size estimates (cubic feet):
- Bed (queen): 60–70 cu ft
- Sofa: 50–70 cu ft
- Dresser: 30–40 cu ft
- Dining table + 4 chairs: 40–50 cu ft
- Desk: 25–35 cu ft
- Boxes (medium): ~3 cu ft each
- Appliance (fridge, washer): 25–30 cu ft each
Tips:
- Stack boxes to maximize vertical space (units are 8–10 ft tall)
- Create an aisle in the middle for access to items in the back
- Climate-controlled units cost more but protect furniture, electronics, and documents