What size storage unit do I need?
Public Storage's size guide puts a 1 bedroom apartment in a 5x15 unit, a 2 bedroom apartment in a 10x10 and a 3 bedroom house in a 10x20. Pick what you are storing to see the unit drawn to scale and what it costs per month.
Storage unit size for a closet of boxes and seasonal things
5x5
25 square feet, 200 cubic feet
About $16 a month
Half of the online prices for a 5x5 at 355 Storage Rentals of America facilities sat between $11 and $26 on November 5, 2026.
- Public Storage (25 sq ft): “Storage Closet”
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Storage unit size for a studio apartment
5x10
50 square feet, 400 cubic feet
About $27 a month
Half of the online prices for a 5x10 at 628 Storage Rentals of America facilities sat between $19 and $41 on November 5, 2026.
- Public Storage (50 sq ft): “Studio Apartment”
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Storage unit size for a 1 bedroom apartment
5x15
75 square feet, 600 cubic feet
About $37 a month
Half of the online prices for a 5x15 at 219 Storage Rentals of America facilities sat between $23 and $57 on November 5, 2026.
- Public Storage (75 sq ft): “1 Bedroom”
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Storage unit size for a 2 bedroom apartment
10x10
100 square feet, 800 cubic feet
About $51 a month
Half of the online prices for a 10x10 at 662 Storage Rentals of America facilities sat between $35 and $74 on November 5, 2026.
- Public Storage (100 sq ft): “2 Bedrooms”
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Storage unit size for a 2 bedroom house
10x15
150 square feet, 1,200 cubic feet
About $67 a month
Half of the online prices for a 10x15 at 597 Storage Rentals of America facilities sat between $48 and $98 on November 5, 2026.
- Public Storage (150 sq ft): “2 Bedroom home”
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Storage unit size for a 3 bedroom house
10x20
200 square feet, 1,600 cubic feet
About $92 a month
Half of the online prices for a 10x20 at 635 Storage Rentals of America facilities sat between $64 and $128 on November 5, 2026.
- Public Storage (200 sq ft): “3 Bedroom home”
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Storage unit size for a 4 bedroom house
10x25
250 square feet, 2,000 cubic feet
About $111 a month
Half of the online prices for a 10x25 at 256 Storage Rentals of America facilities sat between $78 and $157 on November 5, 2026.
- Public Storage (250 sq ft): “4 Bedroom home”
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What size storage unit you need for each home
Each row pairs Public Storage's guidance with the typical online price of that size at Storage Rentals of America on November 5, 2026.
| What you are storing | Unit size | Price a month |
|---|---|---|
| A closet of boxes and seasonal things | 5x5 25 sq ft | $16 |
| A studio apartment | 5x10 50 sq ft | $27 |
| A 1 bedroom apartment | 5x15 75 sq ft | $37 |
| A 2 bedroom apartment | 10x10 100 sq ft | $51 |
| A 2 bedroom house | 10x15 150 sq ft | $67 |
| A 3 bedroom house | 10x20 200 sq ft | $92 |
| A 4 bedroom house | 10x25 250 sq ft | $111 |
How the size calculator works
The sizes come from the Public Storage size guide, which matches each unit to a home, from a "Storage Closet" for a 5x5 to a "4 Bedroom home" for a 10x25. Public Storage notes that sizes are approximate and may vary by facility. Where Storage Rentals of America describes a size on its listings, that wording is shown too.
The prices are the online rates that Storage Rentals of America lists on its facility pages. We read 706 of its facilities in 32 states on November 5, 2026 and show the median, with the middle half of prices as the range. Each facility also lists a higher original rate, so the price you pay depends on the deal on the day.
See every size side by side on the storage unit sizes page, or the full price table on how much a storage unit costs.