Storage Unit Sizes Explained
The average American rents a 10×10 unit and overpays by $30/month because they guessed at the size. Don't guess. The table below ranks every standard storage unit size by search popularity — which closely tracks rental demand. A 5×5 holds a closet's worth of boxes. A 10×30 holds a three-bedroom house. The right answer is somewhere in between, and it depends on exactly what you're storing.
Click any size for what fits, real pricing, and a visual breakdown.
All Storage Unit Sizes (12)
| # | Size | Sq Ft | Cost Range | Searches/mo |
|---|---|---|---|---|
| 1 | 5×5 Storage Unit | 25 | $45–$120 per month | 21,800 |
| 2 | 5×10 Storage Unit | 50 | $45–$120 per month | 20,000 |
| 3 | 10×10 Storage Unit | 100 | $85–$180 per month | 17,100 |
| 4 | 10×15 Storage Unit | 150 | $90–$280 per month | 14,200 |
| 5 | 10×30 Storage Unit | 300 | $180–$400 per month | 9,800 |
| 6 | 10×20 Storage Unit | 200 | $95–$280 per month | 9,000 |
| 7 | 10×25 Storage Unit | 250 | $180–$350 per month | 1,200 |
| 8 | 8×10 Storage Unit | 80 | $85–$180 per month | 1,100 |
| 9 | 4×4 Storage Unit | 16 | $45–$95 per month | 700 |
| 10 | 5×8 Storage Unit | 40 | $45–$95 per month | 600 |
| 11 | 5×7 Storage Unit | 35 | $45–$120 per month | 500 |
| 12 | 20×20 Storage Unit | 400 | $180–$400 per month | 500 |