Storage unit sizes follow a standard naming convention: width × depth in feet. A 10×10 unit is 10 feet wide and 10 feet deep, giving you 100 square feet of floor space. Most units have 8-foot ceilings, giving you approximately 800 cubic feet of usable space. Here's a complete breakdown of every size available at Ontario storage facilities.
5×5 Unit
25 sq ft · 200 cu ft · 8' ceiling
Think of it as: Large walk-in closet
Best for: Seasonal items, small furniture, college dorm contents
✅ What fits inside
- Small dresser
- Bicycle
- TV (up to 55")
- 10–15 boxes
- Holiday decorations
- Sports equipment
❌ What doesn't fit
- Sofa
- Bed frame
- Dining table
5×10 Unit
50 sq ft · 400 cu ft · 8' ceiling
Think of it as: Large walk-in closet or small bedroom
Best for: 1-bedroom apartment, studio move-out, college storage
✅ What fits inside
- Queen mattress + frame
- Sofa
- Small dresser
- Desk + chair
- 20–25 boxes
- Small appliances
❌ What doesn't fit
- Full dining set
- Multiple bedroom sets
- Large sectional
10×10 Unit
100 sq ft · 800 cu ft · 8–10' ceiling
Think of it as: Single-car garage
Best for: 2-bedroom apartment or home, office contents, renovation storage
✅ What fits inside
- Full living room set
- King bed + frame
- 2 dressers
- Dining table + 6 chairs
- Appliances
- 30+ boxes
❌ What doesn't fit
- Multiple vehicles
- Full 3-bedroom home
10×15 Unit
150 sq ft · 1200 cu ft · 8–10' ceiling
Think of it as: Large single-car garage
Best for: 2–3 bedroom home, business inventory, home staging
✅ What fits inside
- 3-bedroom home contents (no garage)
- Multiple bedroom sets
- Full kitchen appliances
- 40+ boxes
❌ What doesn't fit
- Full 4-bedroom home
- Multiple vehicles
10×20 Unit
200 sq ft · 1600 cu ft · 8–10' ceiling
Think of it as: Double-car garage (one side)
Best for: 3–4 bedroom home, vehicle storage, contractor equipment
✅ What fits inside
- Full 3-bedroom home
- Car or small truck
- Boat or jet ski
- Large appliances
- 50+ boxes
❌ What doesn't fit
- Full 5-bedroom home
- Multiple large vehicles
10×30 Unit
300 sq ft · 2400 cu ft · 8–10' ceiling
Think of it as: Full double-car garage
Best for: 4–5 bedroom home, large business inventory, multiple vehicles
✅ What fits inside
- Full 4–5 bedroom home
- Multiple vehicles
- Large equipment
- Commercial inventory
❌ What doesn't fit
- Oversized RVs (use outdoor storage)
How to Choose the Right Size
Inventory First
List every item before choosing a size. Most people underestimate by 20–30%.
Size Up When Unsure
The cost difference between adjacent sizes is usually $20–$40/month. Comfort is worth it.
Consider Climate Control
Climate-controlled units are only available in certain sizes. Confirm availability before committing.
Check Door Width
Drive-up units have 8–10 ft wide doors. Confirm if you're storing large furniture or vehicles.
Think Long-Term
If storing for 6+ months, a slightly larger unit lets you reorganize without renting a second unit.
Ask About Availability
Popular sizes (10×10, 5×10) sell out fast. Reserve online to lock in your size and price.
Frequently Asked Questions
What is the most popular storage unit size in Ontario?
10×10 is the most popular storage unit size in Ontario, followed by 5×10. The 10×10 fits a 2-bedroom apartment and is versatile enough for most household moves, renovations, and business needs.
How tall are storage units?
Most storage units have 8-foot ceilings. Some larger units (10×15, 10×20, 10×30) may have 10-foot ceilings. Always confirm ceiling height with the facility, especially if storing tall items like wardrobes or shelving.
Can I fit a car in a 10×20 storage unit?
Yes. A standard sedan or SUV fits in a 10×20 unit with some room to spare. A pickup truck or minivan may be tight. For larger vehicles, a 10×30 is recommended.
What is the difference between indoor and outdoor storage units?
Outdoor (drive-up) units have a garage-style door you access directly from outside. Indoor units are inside a building, accessed via hallways. Indoor units offer better security and climate control options. Outdoor units are more convenient for loading/unloading large items.
Are storage unit sizes standardized across facilities?
Unit dimensions are fairly standard across the industry, but actual usable space can vary slightly. Always confirm exact dimensions with the facility before renting. Some facilities offer non-standard sizes like 8×10 or 12×12.
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