Choosing the right storage unit size is easier than you might think. A good starting point is to consider how many boxes, bags and items of furniture you’ll be storing, and whether they can be stacked. As a guide, most items can be safely stacked up to around 8-10ft high inside our units, which means you can often store more in a smaller space than expected.
We list all units in square feet (sq ft), but we also show square metres (sq m) for convenience. As a quick comparison, 10 sq ft is roughly the size of a large car boot, while 100 sq ft is similar to a single garage. You’ll find real-world examples next to each unit size below to help you visualise the space.
Not sure? Don’t worry — it’s common to switch unit sizes after you arrive. Our storage experts can help you choose the best size, and you can flex your space up or down at any time.
Hatchback car boot size
10 sq ft
Ideal for storing student luggage
Size of a large locker
15 sq ft
Ideal for storing the contents of a bedsit
A single shower cubicle size
16 sq ft
Ideal for storing the contents of a bedsit
Size of a small garden shed
Most Popular
25 sq ft
Ideal for storing the contents of a studio flat
An avg. garden shed size
35 sq ft
Ideal for storing the contents of a one bedroom flat
Size of half a single garage
50 sq ft
Ideal for storing the contents of a large one bedroom flat
Approx. size of a Luton van
75 sq ft
Ideal for storing the contents of a two-bedroom house
Size of a single garage
100 sq ft
Ideal for storing contents of a two or three bedroom house
1.25x a single garage size
125 sq ft
Ideal for storing contents of a 3 bedroom house with garden shed
1.5x a single garage
150 sq ft
Ideal for storing the contents of a large 3 bedroom house
EXTERNAL UNIT
160 sq ft
Size: 1.5 single garage for storing contents of 3 bed home
1.75x a single garage
175 sq ft
Ideal for storing the contents of a 4 bedroom house
Size of a double garage
200 sq ft
Ideal for storing the contents of a 4 bedroom house
a large 30ft lorry size
250 sq ft
Ideal for storing the contents of a 4 or 5 bedroom house, garage and shed
The size of 2 large lorries
500 sq ft
This size is ideal if you're looking for a big room for a large family home move
Huge spaces up to 2000sq ft
600 sq ft
If you're looking for a larger rooms, please give us a call.
10 sq ft
Hatchback car boot size
15 sq ft
Size of a large locker
16 sq ft
A single shower cubicle size
25 sq ft
Size of a small garden shed
35 sq ft
An avg. garden shed size
50 sq ft
Size of half a single garage
75 sq ft
Approx. size of a Luton van
100 sq ft
Size of a single garage
125 sq ft
1.25x a single garage size
150 sq ft
1.5x a single garage
160 sq ft
EXTERNAL UNIT
175 sq ft
1.75x a single garage
200 sq ft
Size of a double garage
250 sq ft
a large 30ft lorry size
500 sq ft
The size of 2 large lorries
600 sq ft
Huge spaces up to 2000sq ft
Hatchback car boot size
10 sq ft
Ideal for a small office desk move
Size of a large locker
15 sq ft
Ideal for storing a cubicle desk move
A single shower cubicle size
16 sq ft
Ideal for storing a cubicle desk move
Size of a small garden shed
25 sq ft
Ideal for office cubicle desk moves
An avg. garden shed size
35 sq ft
Ideal for office cubicle desk moves
Size of half a single garage
50 sq ft
Ideal for a small office move
Approx. size of a Luton van
75 sq ft
Ideal for a small office move
Size of a single garage
Most Popular
100 sq ft
Ideal for a medium office move
7.5 tonne lorry sized space
125 sq ft
Ideal for a medium office move
1.5x a single garage
150 sq ft
Ideal for a a large office move
EXTERNAL UNIT
160 sq ft
Size: 1.5 single garage for a large office move
1.75x a single garage
175 sq ft
Ideal for a large office move
Size of a double garage
200 sq ft
Ideal for a business relocation
a large 30ft lorry size
250 sq ft
Ideal for large business relocations
The size of 2 large lorries
500 sq ft
If you're looking for a room for bulk or warehouse storage, this size might be right for you.
Huge spaces up to 4000sq ft
600 sq ft
If you're looking for a larger room for bulk or warehouse storage, please give us a call.
10 sq ft
Hatchback car boot size
15 sq ft
Size of a large locker
16 sq ft
A single shower cubicle size
25 sq ft
Size of a small garden shed
35 sq ft
An avg. garden shed size
50 sq ft
Size of half a single garage
75 sq ft
Approx. size of a Luton van
100 sq ft
Size of a single garage
125 sq ft
7.5 tonne lorry sized space
150 sq ft
1.5x a single garage
160 sq ft
EXTERNAL UNIT
175 sq ft
1.75x a single garage
200 sq ft
Size of a double garage
250 sq ft
a large 30ft lorry size
500 sq ft
The size of 2 large lorries
600 sq ft
Huge spaces up to 4000sq ft
Size Guide 3
3 sq ft
Get a Quote
First, let's locate a room at your nearby storage centre.
If you’re unsure what size you need, try thinking in terms of rooms in your home:
25–50 sq ft: contents of a studio or one-bed flat
75–100 sq ft: contents of a 2–3 bedroom home
150+ sq ft: contents of a larger house or business storage needs
Students storing belongings between terms or over holidays often use units between 10–25 sq ft for more about student storage, your options and what size you’ll need, visit our student storage guide.
Looking for storage in the capital? We have 54 stores across London, more than any other provider, with units available from 10 sq ft upwards.
Business Storage Sizes
100 sq ft - Approx. the size of a single garage.
Ideal for storing large deliveries, seasonal stock, or bulk inventory. Suitable for online retailers, market traders, or tool & equipment storage for trade businesses.
125 sq ft - Slightly larger than a single garage.
Useful for holding palletised stock, archived documents, or display materials. Great for businesses who need regular access throughout the week.
150 sq ft - Around the size of a large single garage / small workshop.
Works well for stock rooms, event equipment, e-commerce fulfilment, or temporary office furniture during relocation or refurbishment.
200 sq ft - About the size of a double garage.
Ideal for larger product lines, bulk warehouse overflow, or storage for multiple office equipment. Can comfortably hold large shelving unit for organised picking/packing.
250 sq ft - Large double-garage footprint.
Great for growing retailers, trade contractors, or regional teams who need centralised stock. Plenty of space for pallets, rolling racks, or metered racking systems.
Business Storage Sizes - simple view
Size
Approx. Description
Typical Business Use
100 sq ft
Size of a single garage
Bulk stock, equipment storage, e-commerce traders
125 sq ft
Slightly larger single garage
Palletised stock, document archives
150 sq ft
Large single garage
Stock rooms, event equipment, fulfilment prep
200 sq ft
Double garage
Warehouse overflow, multi-employee kit storage
250 sq ft
Large double garage
Retail stock holding, trade teams, seasonal goods
300 sq ft
Small warehouse
Packing/dispatch setup, relocation backup space
400 sq ft
Small commercial unit
High-volume inventory, regular deliveries
500+ sq ft
Large warehouse area
Import/export operations, large relocations
Storage Size FAQs
How do I choose the right storage unit size?
Count boxes and larger furniture, and remember items can be stacked to ~6 ft high. If unsure, start smaller and adjust on move-in — you can switch sizes at any time.
Can I change unit size after booking?
Yes — it’s common to switch on arrival. Our team will help you flex up or down with no admin fee.
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