
Choosing the right storage space doesn't have to be complicated. Our storage size guide breaks down each unit's dimensions to help you determine the ideal fit for your items, whether you're storing a few seasonal boxes or an entire household.
Storage units are measured by their length and width, giving you an accurate idea of their footprint. So, a 5×10 unit equals 50 square feet. Height is also an important factor, as it defines how much space your unit has for stacking items.
When you understand how storage unit sizes work, you can choose the right solution for your requirements:
Before you choose a unit, make a list of the items you'll store and factor in your future requirements for additional space.
Choosing the right size storage unit ensures your items are kept safe and prevents future costs. For example, a small storage unit might save money initially, but if you have a lot of items, you'll either need to rent a second space or upgrade to a medium storage unit.
Here are the most important steps to take when choosing a storage unit:
Many storage facilities also offer special storage units, including climate-controlled features and covered outdoor options. If you're looking for a storage unit for vehicles, it's important to consider size, accessibility, and security.
A vehicle storage unit can protect your vehicle from the elements and give you peace of mind that it's in a safe location.
The best storage unit size for a car is usually 10×20, as it matches the size of a single garage and can offer some extra space to move around. However, if you want to store a car with other belongings, opting for a larger car storage unit can be beneficial.
Motorcycle storage units keep your bike dry, secure, and protected from the elements and theft during off-season periods.
In most cases, a 5×10 unit is more than enough for a motorbike, and these units can also accommodate accessories like helmets.
Business storage units are used for stock, equipment, documents, or tools, helping free up workspace while keeping items organized and accessible. You'll find a range of sizes available, but the right one for your needs depends on your business and equipment.
Most businesses start with a 10×10 unit (100 sq ft), which is similar to a spare bedroom or small office. However, if you have more stock or will need to add to your storage in the future, a 10×15 unit might be the better option.
Small storage units usually range from 5×5 to 5×10. These units are popular for storing small seasonal items, boxes, or personal belongings when you want to free up space in your home.
A 5×5 storage unit equates to 25 square feet. It's about the size of a small wardrobe or cloakroom.
5×5 Storage units are ideal for seasonal items, a few boxes, and compact belongings. For example, you can store seasonal decorations, sports gear, and small furniture pieces.

A 5×10 storage unit is similar in size to a small bedroom or walk-in wardrobe. It offers enough space to store larger items while remaining compact. It's ideal for a studio apartment's worth of items or a single bedroom's furniture.
You can store a queen mattress set, a dresser, a small sofa, or roughly 10-15 boxes plus a few pieces of furniture. It is best for small apartment clean-outs, office equipment, or temporary storage during moves.
Medium storage units offer more flexibility, as they can accommodate more items. For example, when you choose a 5×5, 10×10, or 10×15 unit, you can store the contents in a small to large bedroom.

A 5×15 unit is roughly the size of a large walk-in wardrobe or a small spare room. It gives you more length than a 5×10, making it a practical option for storing bulkier furniture and extra boxes without taking up the space of a larger unit. It is ideal for the contents of a one-bedroom apartment or several larger household items.
You can store a queen mattress set, a sofa, a dresser, a dining table, chairs, and roughly 15–20 boxes, depending on how efficiently the unit is packed. It is best for one-bedroom apartment moves, furniture storage during renovations, or keeping business stock and office equipment organized.

A 10×10 storage unit equates to 100 square feet. A 10×10 Storage unit is about the size of a bedroom. This is our most popular size!
This unit fits the contents of a one-bedroom apartment or a small two-bedroom home. It accommodates a king mattress, a full living room set, or dining room furniture, plus boxes. You could also store a motorcycle, appliances, and seasonal inventory. This is best for a one-bedroom apartments, home renovations, or small business inventory.

A 10×15 ft storage unit equates to 150 square feet. It is about the size of a large bedroom.
A 10×15 unit is spacious enough to hold furniture and belongings from a two-bedroom apartment or home. Perfect for storing an entire bedroom set plus living room furniture, or a garage full of tools and equipment. It can also accommodate items like pianos, jet skis, or substantial business stock. This is best for two-bedroom homes, garage contents, or growing businesses.

Large storage units are best for storing the contents of a home or business. These units can easily accommodate a vehicle, bulky furniture, and heavy-duty equipment.
A 10×20 storage unit equates to 200 square feet. This is about the size of a standard one-car garage.
A 10×20 Storage Unit is large enough for a three-bedroom home's furnishings or a complete apartment with appliances. This unit easily fits multiple rooms of furniture, large appliances, pallet storage, and even a compact car or small boat. It is best for three-bedroom homes, major renovations, or vehicle storage.

A 10×25 storage unit equates to 205 square feet. This is about the size of a large one-car garage.
A 10×25 Storage Unit is designed for larger homes and extensive storage needs. This unit accommodates furniture from a four-bedroom house, vehicles, and bulk items from your basement and garage. Ideal for long-term storage of household goods or substantial commercial inventory. This is best for four-bedroom homes, vehicle and boat storage, or business equipment.

A 10×30 ft storage unit equates to 300 square feet. This is about the size of a spacious master bedroom.
A 10×30 Storage Unit provides maximum storage capacity. Perfect for the contents of a complete four- or five-bedroom home, international moves, or significant business inventory. This unit can handle multiple vehicles, furniture sets, and extensive collections. A 10×30 Storage Unit Best for large homes, international relocations, or major business storage needs.

A standard storage unit is about 8 ft tall, giving you plenty of space to stack boxes and make the most of the unit.
The largest storage unit you'll find in standard facilities is around 10x30 ft (300 square feet). However, some units can exceed 500 square feet, making them ideal for storing the contents of a large business.
It depends on your current and future needs. If you only need to store a few boxes, a 5x5 unit might suit your needs best. However, if you have more items in the future, choosing a larger size can be beneficial as it offers more flexibility.
It depends on the size of your apartment and the items you want to store. For example, if you need to store bedroom sets, such as wardrobes, drawers, and bedding, a 10 x 10 unit should suffice. But if you have a large apartment with lots of belongings, opting for a larger size can be beneficial.
A 10×10 ft unit (100 sq ft) should be enough for a 2-bedroom apartment, as it can hold appliances, furniture, and multiple boxes. However, it depends on how well you use the vertical space.
We usually recommend a 10x15 or 10x20 unit for a 3-bedroom house, as it can accommodate the contents of a family home, including white goods and larger furniture.
If you need to store the contents of a 4-bedroom house, a 10x25 or 10x30 unit provides more than enough space. You can fit multiple rooms of furniture, storage boxes, and appliances.
Yes, you can - but the unit should be designed for vehicle storage. A standard car requires a minimum 10x20 ft unit, while boats and trucks will need more space.
Yes, a car can fit in a storage unit the size of a small garage. Again, it depends on the vehicle model and size, but a 10 x 20 unit is usually enough. However, you might not be able to accommodate other belongings.
It can be - especially if you want to enhance accessibility. For example, a larger unit can store bulky appliances like dryers and washers, as well as exercise equipment, while also accommodating clothing and other belongings.
However, there's a balance between choosing a unit that accommodates your growing needs and spending a lot of money on one you don't really need.
Generally speaking, a 5 x 5 storage unit can accommodate around 5-19 standard boxes. However, it depends on size and whether you stack them correctly. If you need to fit items like tables, chairs, and appliances into the unit, you'll need to reduce the number of boxes.