STORAGE CALCULATOR & SIZE GUIDE
Self Storage Size Guide
Not sure how much space you need? Use our storage unit calculator or compare our unit sizes to find a sensible starting point.
STORAGE UNIT CALCULATOR
Find the Right Starting Size
Choose whichever comparison is easiest for you. We’ll suggest a sensible unit size or range.
How would you like to estimate the space you need?
Start with whichever comparison you already know.
YOUR ESTIMATE
Your estimate will appear here
Choose an option and we’ll suggest a sensible starting size.
Suggested starting point
This is an estimate. Our team can help confirm the most suitable room before you move in.Box estimates: based on medium removal boxes measuring approximately 457 × 457 × 457 mm, with sensible allowance for normal packing gaps.
Useful to know: all rooms are at least 7 ft high. Vehicle comparisons are approximate and storage can often be packed more efficiently than a removal van.
VISUAL SIZE GUIDE
Compare Our Storage Unit Sizes
Compare the illustrations, typical contents and current prices to find the size that looks right for you.
10 sizes available. Use the buttons above, drag sideways with your mouse on desktop, or swipe on a phone or tablet.
AT A GLANCE
Storage Size Comparison Table
Swipe to see more information ⟶⟶⟶
| Unit Size | Approx. Contents Of | Medium Boxes 457 × 457 × 457 mm |
Size / Moving Comparison |
|---|---|---|---|
| 16 sq ft | Loft items / small household overflow | Up to about 15 | Car load, depending on car size |
| 20 sq ft | Loft contents / camping gear / boxes | 20–25 | Large car load or part small-van load |
| 25 sq ft | Boxes plus smaller household belongings | 30–35 | About one small van load |
| 35 sq ft | One room / large loft clear-out | 40–50 | Around 30% of a typical single garage or Transit van load |
| 50 sq ft | Contents of around a 1-bedroom home | 60–80 | Around 40% of a typical single garage or one Long Wheel Base Sprinter load |
| 75 sq ft | Contents of around a 1–2 bedroom home | 90–120 | Around 60% of a typical single garage or one Luton load |
| 100 sq ft | Contents of around a 2-bedroom home | 120–150 | Small single garage or about 2 × Long Wheel Base Sprinter loads |
| 125 sq ft | Contents of around a 3-bedroom home | 150–180 | Typical single garage or about 1½ Luton loads |
| 150 sq ft | Contents of around a 3-bedroom home | 180–240 | About one 7.5T truck or 2 × Luton loads |
| 200 sq ft | Contents of around a 4-bedroom home | 250–300 | Around 1½ single garages / large removal load |
All figures are approximate. Box estimates use medium 457 × 457 × 457 mm removal boxes. Furniture, packing style and any access space required can affect the size you need.
LARGE OR INTERNATIONAL MOVE?
Cubic Volume Estimate
Removal companies sometimes quote your belongings in cubic metres. Enter that figure below and we’ll estimate the storage floor area you may need.
If the quoted volume already includes an allowance for packing gaps, let us know so we don’t add the allowance twice.
CUBIC VOLUME ESTIMATE
Enter your cubic metre figure
We’ll convert the volume into a practical storage floor-area estimate.
USE YOUR SPACE WELL
Make the Most of Your Storage Unit
A little planning can make a noticeable difference to how much fits and how easy your unit is to use.
Indoor self storage at our Bamber Bridge, Preston facility
NOT SURE WHETHER TO GO BIGGER?
You Can Change Unit Size
Ask us first. Good packing can often save space, and we’d rather help you choose the right room than have you paying for storage you don’t need. If your requirements change later, you can move to a larger or smaller unit at any time, subject to availability, with no penalty for changing size.
SIZE GUIDE FAQ
Common Size Questions
Still unsure? These are the questions we are asked most often.
How do I calculate what size storage unit I need?
Start with whichever comparison you already know: your home size, removal vehicle, number of boxes or roughly how much of a garage your belongings would fill. Then allow for large furniture and any walkway you may need. Our calculator above does this for you.
What are typical self storage unit sizes?
Our standard sizes range from compact 16 sq ft rooms through to 200 sq ft units, with several sizes in between.
What is the most popular storage unit size?
There is no single ideal size, but 50 sq ft is one of our most popular rooms. It can suit household furniture, boxes, smaller-home contents or business stock.
What size storage unit do I need for a 3-bedroom house?
We would normally start by looking at around 125–150 sq ft. The amount of furniture, garage or shed contents and how efficiently everything can be packed can change the size required.
How accurate is the storage unit calculator?
It is designed to give you a sensible starting estimate, not an exact guarantee. The size and shape of your belongings, packing style and access space can all make a difference.
What size boxes are your estimates based on?
We use medium removal boxes measuring approximately 457 × 457 × 457 mm and allow for the gaps that occur when packing a real storage room.
What do the vehicle comparisons mean?
They are simple guides. A Transit van load is around 35 sq ft, a full long-wheelbase Sprinter-style van around 50 sq ft and a full Luton van around 75 sq ft.
A storage room can often be packed more efficiently than a vehicle because belongings do not need to be arranged for transport.
How high are the storage units?
All of our storage rooms are at least 7 ft high, with some rooms taller.
Can I put shelving or racking inside my storage unit?
Yes. Freestanding shelving or racking is normally fine and can be a useful way to make use of the room height, particularly for business stock. It must not be fixed to or damage the walls, floor or structure of the unit.
How big is a typical single garage?
For this guide we use approximately 125 sq ft as a simple single-garage comparison. Real garages vary in size.
Does leaving access space affect the size I need?
Yes. If you need regular access, leaving a walkway makes the room easier to use and may mean you need slightly more space.
Can I see the storage rooms before deciding?
Yes. You are welcome to contact our team and look at suitable unit sizes at our Bamber Bridge facility before choosing.
Still Not Sure Which Size?
Tell us what you’re storing and we’ll help you choose a sensible starting point.