The size storage unit you need comes down to how much you are storing: a 5×5 holds a closet or a few boxes, a 10×10 fits roughly a one-bedroom apartment, and a 10×20 holds a full three-to-four-bedroom home. Below, we match real-life situations to the right unit so you rent exactly what you need — no paying for empty space, no cramming.
Quick Answer
- 5×5 (25 sq ft) — a large closet: seasonal items, boxes, small furniture.
- 5×10 (50 sq ft) — a small bedroom: mattress set, dresser, 15+ boxes.
- 10×10 (100 sq ft) — the most popular size: about a one-bedroom apartment.
- 10×15 (150 sq ft) — roughly a two-bedroom home with appliances.
- 10×20 (200 sq ft) — a three-to-four-bedroom house, or a vehicle.
Storage Unit Size Chart
| Unit | Size | Holds about… | Best for |
|---|---|---|---|
| 5×5 | 25 sq ft | A large closet | Boxes, seasonal decor, a small dresser, a few totes |
| 5×10 | 50 sq ft | A small bedroom | Mattress set, dresser, boxes, a bike or small couch |
| 10×10 | 100 sq ft | A one-bedroom apartment | Furniture, appliances, 15–20 boxes |
| 10×15 | 150 sq ft | A two-bedroom home | Furniture from multiple rooms, major appliances |
| 10×20 | 200 sq ft | A 3–4 bedroom house | A full household move, or a car/small boat |
How to Figure Out What Size You Need in 4 Steps
1. Inventory the big stuff first. Beds, sofas, appliances, and dressers drive the size you need far more than boxes do. List them before anything else.
2. Group by room. A rough rule of thumb: each furnished room adds about 50 square feet of storage. One room ≈ a 5×10, two rooms ≈ a 10×10, a whole house ≈ a 10×20.
3. Leave a walkway. If you will need to reach items later, add a little room to walk in. If you are packing it and closing the door until you move, you can pack tighter.
4. When in doubt, size up. The jump to the next size is usually a small monthly difference, and it is far cheaper than renting a second unit later. Our team in Gulfport is happy to help you decide — just ask.
Not sure which size fits your move?
Call (727) 327-9598 or reserve your unit online — month-to-month, no long-term contract.
What Size Do You Need for an Apartment or House?
- Studio / dorm: a 5×10 usually does it.
- 1-bedroom apartment: a 10×10 is the sweet spot.
- 2-bedroom home: step up to a 10×15.
- 3–4 bedroom house: a 10×20 holds a full household.
Want to see exactly what fits in the most popular size before you decide? Read what fits in a 10×10 storage unit, and check current pricing in our storage unit cost guide.
Frequently Asked Questions
How do I figure out what size storage unit I need?
Start with your largest furniture and appliances, then estimate about 50 square feet per furnished room. A one-bedroom apartment typically fits in a 10×10, while a full house usually needs a 10×20. If you are between sizes, size up.
What is the most popular storage unit size?
The 10×10 is the most popular unit. At 100 square feet it holds roughly a one-bedroom apartment — furniture, appliances, and 15–20 boxes — which fits the majority of home and apartment moves.
Is a 10×10 storage unit big enough for a 2-bedroom apartment?
A 10×10 works for a small or lightly furnished two-bedroom, but most two-bedroom homes are more comfortable in a 10×15. If you have large furniture or appliances from both bedrooms plus a living room, choose the 10×15.
What size storage unit do I need for a 1-bedroom apartment?
A 10×10 is the standard recommendation for a one-bedroom apartment. If you are only storing part of the apartment — say, furniture while you travel — a 5×10 may be enough.
What size storage unit do I need for a car?
A standard car needs a 10×20 unit, which gives you room to open a door and walk around it. A 10×10 is too short for most vehicles.
Reserve the right-sized unit today in Gulfport, FL.
Call (727) 327-9598 or reserve your unit online — month-to-month, no long-term contract.