Self Storage Unit Sizes Explained

Storage companies provide a variety of unit sizes and types to accommodate different needs. These range from small 10 sq. ft lockers to spacious units over 500 sq. ft.

The ideal unit size will depend on your specific requirements and budget. Students often opt for short-term, smaller units, while businesses typically require larger commercial storage units for their equipment.

In this guide, we explore the different storage unit sizes and the types of items that are best suited for each size. Please note that unit sizes are approximate, and we recommend inspecting the unit in person to ensure it meets your needs.

How to Choose the Right Storage Unit Size?

Choosing the right storage unit size will depend on the items you’re storing. Below we've listed the common uses for storage to help determine the size you'll need.

Personal storage

Many people store personal items such as important documents or photographs. This tends to be smaller items so a storage locker or a small storage unit will be best suited. If you are looking find car storage costs, you will need a larger storage unit or even a climate controlled unit.

Student storage

Students are often in between accommodation so short-term storage is common for many. 25 sq ft units are ideal for students as most accommodation will come furnished.

Business Storage

Businesses often need to store private documents or business stock so larger units will suit best.

Climate controlled storage

Temperature controlled storage helps to protect items like vinyl records, antiques and artwork. This is often flexible in size so will depend on the volume of items needed storing.

Small Storage Unit - 25 Sq. Ft-50 Sq. Ft

Smaller storage units are roughly the size of an average garden shed, so are ideal if you are storing the entire contents of one room. They are roughly between 25 square feet and 50 square feet.

The contents of a unit this size will approximately fill half the size of a transit van.

A small storage unit holds

Garden supplies and equipment

Small furniture items (side tables, small chairs etc)

Seasonal decorations

Camping gear

Sport and fitness gear

Bikes

Medium Storage Unit - 75 Sq. Ft-150 Sq. Ft

A medium storage unit is approximately the size of a single garage. This could fit the contents of one-and-a-half Luton vans. The size of this unit is between 75 square feet and 150 square feet.

A medium storage unit holds:

Double bed

Wardrobe

Three-piece suite

Dining table and chairs

Larger sports equipment

Garden and landscaping equipment

Large Storage Unit - 175 Sq. Ft-250 Sq. Ft

A large storage unit is ideal for the contents of a 4-5 bedroom house. It is also suitable for businesses for additional stock and office equipment. These units are roughly the size of a double-car garage, big enough to fit a car and could be a cheaper option to car storage costs from car storage specific storage facilities.

For transportation, the contents of a unit this size will likely require a 7.5-tonne box lorry. In this case, contacting a removal company is highly advised.

A large storage unit holds:

Large beds

Furniture sets

Pianos and other large musical instruments

Refrigerators and large freezers

Retail inventory and business stock

Construction supplies

Extra Large Storage Unit (500 Sq. Ft)

An extra large storage unit is useful for businesses but it can also be ideal for those looking to store the contents of a large home or estate. This size unit equates to a three-car garage.

For transport, the contents will best fit in an articulated lorry. Again, you can arrange this with a removal company.

An extra large storage unit holds:

The contents of a large house

Inventory for businesses

Vehicles

Large tools and equipment

Are There Bigger Storage Sizes Available?

If you require storage space greater than 500 sq. ft, renting warehouse storage from local providers is a smart choice. This type of storage is perfect for storing large items like palletized goods or high volumes of stock, and it is commonly used by business owners.

How to Change Storage Unit Size

Selecting the right size storage unit for your belongings is crucial to avoid paying more than necessary.

If you’ve misjudged the size of your storage unit, you'll need to speak with your provider about changing to a different unit size. Most storage companies offer flexibility, and if the desired unit is available, you can usually switch for an additional cost, depending on the minimum rental period.

How to Get a Self-Storage Quote

Omni Removals can connect you with up to 6 local storage providers so you can compare storage costs. All of our storage partners will be insured and verified so you know you’re in safe hands. Save up to 70% on the cost of your storage unit today.