September 23 2024
One of the most common questions customers ask when moving home is:
“What size storage unit do I need?”
If you’re staring at boxes, furniture, and cupboards wondering how it will all fit, you’re not alone. Estimating the right self-storage unit size is one of the biggest pain points during a house move and getting it wrong can cost you time, money, and stress.
Whether you’re downsizing, waiting for a completion date, renovating, or simply decluttering before a move, this guide will help you work out how much storage you need and choose the right unit with confidence.
Why Choosing the Right Storage Unit Size Matters
Picking the correct self-storage unit size isn’t just about space, it directly affects cost, access, and how well your belongings are protected.
- Too small: Hard to access items, increased risk of damage, constant reshuffling
- Too large: Paying more than necessary each month
- Just right: Easy access, organised storage, better value for money
Understanding storage unit sizes before you move allows you to plan efficiently and removes unnecessary stress during an already busy time.

Small Storage Units (9-25 sq ft)
Ideal for:
- Studio flats
- Students
- Seasonal or overflow items
Typically fits:
- Boxes & suitcases
- Bicycles
- Small furniture
- Sports Equipment
Tip: Perfect if you’re decluttering but still need quick access to essentials.
Medium Storage Units (35-75 sq ft)
Ideal for:
- 1–2-bedroom homes
- Short-term moves
- Home renovations
Typically fits:
- Entire household contents
- Large furniture and appliances
- Garage and garden items
Tip: Ideal if you’re moving in stages or storing items while waiting for a completion date.
Large Storage Units (100-150 sq ft)
Ideal for:
- 3-4 bedroom homes
- House moves
- Long term storage
Typically fits:
- Entire household contents
- Large furniture
- Appliances
- Garage items
Expert Insight: “In our experience helping thousands of customers move home across the UK, most people underestimate how much space bulky furniture actually takes once packed safely. Sofas, mattresses, and wardrobes are the items most often forgotten when choosing a unit size. As a general rule, if you’re unsure between two sizes, choosing the next size up usually saves time, stress, and repacking.”
How Much Storage Do I Need? Use a Storage Unit Size Calculator
If you’re still unsure what size storage unit you need, using a storage unit size calculator is the quickest way to get clarity.
Our online storage size estimator gives you a visual guide to how everyday household items fit into different unit sizes, helping you make a confident decision without guesswork.
Try our storage unit size estimator to see what fits best for your move.
Please note: Size calculators are a guide. The exact unit you need may vary depending on the shape, weight, and dimensions of your items and how efficiently they’re packed.
Expert Insight: “Our sales advisors regularly use the same estimator when helping customers choose a unit over the phone. It’s particularly accurate for standard household moves and gives a reliable starting point before viewing a unit in person.”
Common Mistakes When Estimating Storage Unit Size
Many people underestimate how much storage they need when moving home. The most common mistakes include:
- Forgetting bulky items like sofas, wardrobes, and mattresses
- Not accounting for vertical stacking space
- Overfilling a unit, making access difficult
- Choosing the cheapest unit without considering practicality
Poor packing can make even a correctly sized unit feel too small. Using strong boxes, dismantling furniture, and stacking vertically can help maximise space and may even allow you to choose a smaller unit. See here how to pack efficiently.
Most common questions asked FAQs: Storage Unit Sizes for Home Moves
What size storage unit do I need for a 2-bedroom house?
Our customers in a 2-bedroom home typically need a 50–75 sq ft storage unit, depending on furniture volume and packing method.
Is it better to go slightly bigger with a storage unit?
Yes, our customers prefer a little extra space as it makes access easier and reduces the risk of damaging their belongings.
Can I change storage unit size later?
Yes, we offer our customers the option to upsize or downsize if their needs change.
Find the Right Storage Unit Near You
With self-storage locations across the UK including Manchester, Leeds, Coventry, Doncaster, Great Yarmouth and Bournemouth, Ready Steady Store makes it easy to find the right storage solution near you.
Whether you’re moving home, renovating, decluttering, or simply need extra space, our flexible unit sizes, online size estimator, and expert support help you store with confidence.
Get an instant online quote, or speak to our friendly Customer Service Team on 0800 321 3211 for personalised advice.

