HowMuchIt / Storage unit
What size storage unit do I need?
A unit's name is its floor in feet: a 10x10 is 100 square feet. Pick by rooms, then count the height: most units are about 8 feet tall, so a 10x10 holds about 800 cubic feet.
Work out your storage unit
| Unit | Floor | Holds about |
|---|---|---|
| 5x5 | 25 sq ft | a small walk-in closet: boxes and a few small items |
| 5x10 | 50 sq ft | about one room, such as a small bedroom or a dorm room |
| 10x10 | 100 sq ft | about a small bedroom |
| 10x15 | 150 sq ft | the contents of a two-bedroom home or apartment |
| 10x20 | 200 sq ft | a one-car garage: a house with several bedrooms |
| 10x30 | 300 sq ft | a whole household's belongings |
Most units are about 8 ft tall; height varies by facility.
From rooms to units
A 5x5 is about a small walk-in closet. A 5x10 holds about one room, such as a small bedroom or a dorm room. A 10x10 is about the size of a small bedroom. A 10x15 usually fits the contents of a two-bedroom home, and a 10x20, about a one-car garage, suits a house with several bedrooms. The big sizes, up to 10x30, are for a whole household. Total space is width times depth times height: a 10x10 that is 8 feet tall holds about 800 cubic feet.
Questions people ask
What size unit for a 2-bedroom apartment?
Usually a 10x15.
How tall are storage units?
Most are about 8 feet; it varies by facility.
Good to know
- A 5x5 unit (25 sq ft) is about the size of a small walk-in closet.1,2
- A 5x10 unit (50 sq ft) holds about one room, such as a small bedroom or a dorm room.1,2
- A 10x10 unit (100 sq ft) is about the size of a small bedroom.1,2
- A 10x15 unit (150 sq ft) usually fits the contents of a two-bedroom home or apartment.1,2
- A 10x20 unit (200 sq ft) is about the size of a one-car garage and suits a house with several bedrooms.1,2
- The large sizes, 10x20 up to 10x30, are meant for a whole household's belongings.2,3
- Most storage units are about 8 feet tall, though height varies by facility.2,3
- A unit's name gives its floor size in feet; total space in cubic feet is width x depth x height, so a 10x10 unit 8 ft tall holds about 800 cubic feet.2,3
How we checked this page
Checked on October 27, 2026. We kept a fact only when two independent publishers agree, and each one is numbered to its sources below. Where sources give different numbers, we keep only what they share. We never write a price. This page was written with an AI assistant and checked against the sources below.
Sources
- Self-Storage Unit Size Guide, Public Storage
- Self Storage Unit Size Guide, CubeSmart
- Self-Storage Unit Sizes: Storage Rental Size Chart Guide, U-Haul