Common Storage Unit Sizes
What are the most common storage unit sizes, and which one do you need? Explore our guide on storage sizes and find out for yourself.
Choosing The Right Unit
Whether you’re decluttering, moving, or running a business, finding the right storage unit is about more than just square footage—it’s about making your life easier. The right storage choice means peace of mind, knowing your belongings are safe, organized, and accessible when you need them.
Storage isn’t just a place to stash your stuff—it’s a solution for transitions, growth, and security. Maybe you’re an entrepreneur expanding your inventory, a homeowner remodeling a space, or an adventurer in need of seasonal gear storage. No matter your reason, choosing the right unit can save you time, money, and frustration.
To help you decide, here’s a breakdown of the most practical and versatile storage unit sizes available.
Remember: When in Doubt, Size Up
It’s always better to have extra space than to realize you need more later. Investing in the right size prevents damage from stacking, allows for easier access, and reduces stress in the long run.
Need help selecting the perfect unit? You can call us at 345-948-1296 or email us at info@bracstorage.ky.
Common Storage Unit Sizes & Their Best Uses
5×10 (50 sq. ft.) – The Compact Solution
Ideal for: Apartment dwellers, small business owners, and seasonal storage needs.
This storage unit size is popular because it’s so versatile and functional. Our 5x10, 50-square-foot spaces are about the size of a large shed and great for holding various items from a small apartment or all the furnishings of a bedroom or office.
- A queen-sized bed, dresser, nightstands, a bike, and 10–15 moving boxes.
- Overflow household items
- Seasonal decorations
- Small office equipment
- Mattress sets
- Dressers
10×10 (100 sq. ft.) – The Home Extension
Ideal for: Small business inventory, furniture storage, and medium-sized moves.
Need the equivalent of half a standard one-car garage? The 10×10 is one of the most popular sizes because of its versatility. Whether you’re storing furniture during a home renovation or running a commerce business, this unit is a great middle ground between too small and too large.
- Two-bedroom apartment (couches, tables, mattresses, dressers, and around 20 boxes)
- Electronics and musical instruments
- Seasonal décor or equipment such as garden tools, bicycles. watersports equipment
- Office equipment such as desks, chairs, and shelves
10×20 (200 sq. ft.) – The Transitional Space
Ideal for: Large-scale moves, home renovations, or small vehicle storage.
A 10×20 unit is a lifesaver for those going through big life changes—whether it’s relocating to Cayman Brac, remodeling a home, or temporarily downsizing. It’s also perfect for those with extra vehicles, from motorcycles to small boats.
- Bulky household furniture such as sectional sofas, dining tables, mattress sets, dressers, and entertainment centers
- Major appliances such as washers, dryers, and refrigerators
- Large musical instruments or equipment such as pianos and TVs
- Outdoor equipment such as lawnmowers, grills, bicycles, skis, and camping gear
- Commercial inventory and office equipment such as desks, chairs, and shelves
10×30 (300 sq. ft.) – The Ultimate Home
Ideal for: Large households, business storage, or vehicle enthusiasts.
For families with a four- or five-bedroom house, a 10×30 is a game-changer. This garage-sized unit is also perfect for small businesses needing a secure place for bulk inventory, tools, or construction materials.
- One car or small boat
- Furniture from a 4-5 bedroom home
- Outdoor equipment
- Large appliances (refrigerators, washers, dryers)
- Office furniture and business inventory
- ATVs, motorcycles, or jet skis
20×20 (400 sq. ft.) – The Large-Scale Solution
Ideal for: Small business owners, contractors, or major life transitions.
At 400 square feet, this unit goes beyond personal use and becomes a commercial solution. Contractors can store equipment, retailers can stock inventory, and homeowners can temporarily store an entire property’s worth of belongings.
- Items that aren’t easily boxed up
- 2 cars, PWC, boats
- Large household furniture such as sectional sofas, entertainment centers, and mattress and dining sets
- Major appliances such as washers, dryers, and refrigerators
- Outdoor equipment such as lawnmowers, grills, bicycles, and canoes or small boats
- Commercial inventory and office equipment such as desks, chairs, building material and heavy equipment
20×40 (800 sq. ft.) – The Warehouse Alternative
Ideal for: Large businesses, vehicle collectors, or significant inventory needs.
This is where storage meets serious commercial capacity. The 20×40 unit is big enough to serve as a warehouse for businesses or a storage solution for those with extensive belongings.
- Two cars and a boat
- Full 5+ bedroom home contents
- Palletized business inventory
- Construction tools and materials
- Home gym equipment
30×40 (1,200 sq. ft.) – The Mega Space
Ideal for: Large-scale commercial storage, RVs, boats, or entire business operations.
At 1,200 square feet, this storage unit is larger than many small homes. Ideal for a small business, an operation needing logistics space, contractors storing heavy machinery, or boat owners needing a protected space.
- Multiple cars, boats, or commercial vehicles
- Entire warehouse worth of inventory
- Heavy-duty construction equipment
- Mechanic's shop
- Large-scale office or business storage
