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Storage Guide · Updated 2026

Storage Unit Sizes:
What Fits in
Every Size

Choosing the wrong size costs you money in one of two ways — paying for space you don't use, or running out of space and renting a second unit. Here is a complete breakdown of every standard size, what fits in each one, and how to pick the right one for your situation.

Smallest common size
5x5
25 sq ft — one room of boxes
Most popular size
10x10
100 sq ft — 1–2 bedroom apartment
Largest standard size
10x30
300 sq ft — 4–5 bedroom home
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IN THIS GUIDE
01

Quick Size Chooser

Match your home size to the right storage unit. These are general guidelines — actual fit depends on how much furniture you have and how densely you pack.

Your homeRecommended sizeSq ftAvg monthly cost
1 room of boxes / seasonal gear5×525 sq ft$40–$80
Studio / dorm room5×1050 sq ft$60–$110
1-bedroom apartment5×10 to 5×1550–75 sq ft$70–$140
2-bedroom apartment10×10100 sq ft$90–$180
2–3 bedroom home10×15150 sq ft$120–$220
3–4 bedroom home10×20200 sq ft$140–$280
4–5 bedroom home / vehicle10×25 to 10×30250–300 sq ft$170–$350+
When in doubt, go one size up. The price difference between adjacent sizes is typically $20–$40/month. That is far less than the cost of a second unit or a second move when you run out of space.
5×5

5×5 Storage Unit — Large Closet (25 sq ft)

✅
What fits
15–20 medium boxes, a dresser, a small mattress set, seasonal decorations, sports gear, small furniture pieces, business document boxes.
🚫
What doesn't fit
A queen bed with frame, a full-size sofa, large appliances, or contents from more than one room.
🏠
Best for
Seasonal storage (holiday decorations, ski gear), student summer storage, decluttering one room, small business overflow documents.
💰
Average monthly cost
$40–$80/month standard. $55–$100/month climate controlled. One of the most affordable storage options available.
5×10

5×10 Storage Unit — Walk-in Closet (50 sq ft)

One of the most popular sizes for solo renters and students. At 50 square feet, this is roughly the size of a large walk-in closet.

✅
What fits
Queen-size mattress set, loveseat, dresser, TV, bike, 25–30 boxes. Contents of a studio apartment or one bedroom.
🚫
What doesn't fit
Contents from two bedrooms, large appliances like a refrigerator or washer/dryer, a full sectional sofa.
🏠
Best for
Studio apartment contents, dorm storage, one bedroom furniture set during a move, motorcycle storage.
💰
Average monthly cost
$60–$110/month standard. $80–$140/month climate controlled.
10×10

10×10 Storage Unit — Average Bedroom (100 sq ft) ★ Most Popular

The most commonly rented storage unit size for good reason. At 100 square feet, it handles a full 1-bedroom apartment's contents and leaves room for a center aisle so you can actually access your belongings.

✅
What fits
King mattress set, couch, coffee table, dining set, dresser, nightstands, TV, washer and dryer, 40–50 boxes.
🚫
What doesn't fit
Contents of a full house, large kitchen appliances from multiple rooms, sectional sofa plus multiple bedroom sets.
🏠
Best for
1–2 bedroom apartment moves, home renovations, business inventory, staging furniture during a home sale.
💰
Average monthly cost
$90–$180/month standard. $110–$220/month climate controlled. Prices vary significantly by city.
10×15

10×15 Storage Unit — Compact Garage (150 sq ft)

✅
What fits
Two full bedroom sets, multiple mattresses, large sofa, dining set, refrigerator, washer and dryer, TV, 50–60 boxes. Fits a 2–3 bedroom home's contents.
🚫
What doesn't fit
Full contents of a 4+ bedroom house, large vehicles (most cars need 10x20).
🏠
Best for
2–3 bedroom home moves, estate storage, home renovation projects, small business equipment storage.
💰
Average monthly cost
$120–$220/month standard. $150–$280/month climate controlled.
10×20

10×20 Storage Unit — Standard Garage (200 sq ft)

✅
What fits
Contents of a 3–4 bedroom home including king and queen sets, dining room set, workout equipment, full refrigerator, washer and dryer, patio furniture, and most cars/SUVs/compact trucks.
🚫
What doesn't fit
Full 5+ bedroom homes, large trucks or vans over 18 feet, RVs, boats.
🏠
Best for
Large home moves, between-home storage, vehicle storage (most cars, SUVs, trucks), contractor equipment, commercial inventory.
💰
Average monthly cost
$140–$280/month standard. $180–$350/month climate controlled.
Vehicle storage tip: Most compact cars fit in a 10×20. Larger vehicles, vans, and trucks may need a 10×25 or 10×30. Always measure your vehicle's length before booking — most facilities won't issue refunds for incorrect size estimates.
10×25+

10×25 and Larger — Large Home & Vehicle Storage

SizeSq ftWhat fitsAvg cost/month
10×25250 sq ft3–4 bedroom home + large appliances + vehicle up to 22 ft$160–$320
10×30300 sq ft4–5 bedroom home, boat, RV up to 28 ft, commercial equipment$180–$380
20×20+400+ sq ftCommercial storage, large RVs, multiple vehicles, warehouse overflow$250–$600+

Units over 10×20 are less available and typically found at larger self-storage facilities. RV and boat storage is often available as outdoor covered or uncovered parking at lower cost than enclosed units.

02

Average Monthly Storage Prices by City

Storage costs vary significantly by location. Here is what a 10×10 standard unit costs in major US cities.

City10×10 standard10×10 climate controlled
New York, NY$150–$300$200–$400
Los Angeles, CA$120–$250$150–$350
Chicago, IL$90–$180$110–$220
Houston, TX$70–$140$90–$180
Phoenix, AZ$60–$130$80–$160
Atlanta, GA$75–$150$95–$190
Denver, CO$80–$160$100–$200
Miami, FL$100–$200$130–$260
National average$90–$180$110–$230
Save 10–25% by renting in fall or winter. Storage prices peak in summer (May–August) when most people are moving. The same unit at the same facility typically costs less in November through February.
03

Tips for Choosing the Right Size

📝
Take inventory before you book
Walk through your home and list every large item (furniture, appliances) plus estimate your box count. This is more accurate than guessing based on room count alone.
🪟
Think vertically
Standard units have 8-foot ceilings. Stack boxes and lightweight items on top of furniture. Vertical use can effectively double your floor space.
🕐
Plan for access if you'll visit regularly
A completely packed unit is efficient but inaccessible. If you will need items during storage, choose one size up and leave a center aisle.
📈
Consider storage duration
Under 90 days? Standard storage is usually fine. Over 90 days? Consider climate control for furniture, electronics, and documents to avoid damage through seasonal changes.
04

Frequently Asked Questions

What size storage unit do I need for a 2-bedroom apartment?+
A 10×10 (100 sq ft) is typically right for a 2-bedroom apartment. It fits a full bedroom set, couch, dining table, and 40–50 boxes. If you have large appliances or want a center aisle for access, go to a 10×15.
How tall are storage units?+
Most standard storage units have 8-foot ceilings. Some facilities offer 10-foot units. An 8-foot ceiling gives you 800 cubic feet of space in a 10×10 unit — always factor in height when calculating how much fits.
What is the most common storage unit size?+
The 10×10 is the most commonly rented size. It handles a full 1-bedroom apartment and is about the size of a standard bedroom with enough room to walk around.
Can I store a car in a storage unit?+
Most compact cars fit in a 10×20 unit. Larger vehicles, SUVs, and trucks may need a 10×25 or 10×30. Measure your vehicle's length and width before booking — most facilities do not offer refunds for size mismatches.

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