A storage unit that is too small turns moving day into a frustrating game of Tetris. One that is far too large means paying for empty floor space. If you are asking what size storage unit you need, start with what you are storing, how long for, and whether you need regular access to it.
At Fulwood Storage, units range from compact 15 sq ft spaces to 500 sq ft units. That gives Preston households, students and businesses room for anything from a few boxes to the contents of a large home. The right choice is not always about the number of rooms in your property. Furniture size, packing method and access needs matter just as much.
What size storage unit do I need?
Think in terms of the largest items first. Sofas, wardrobes, beds, white goods, filing cabinets and stock shelving decide how much floor space you need. Boxes can be stacked around and above them, provided they are packed safely.
A good rule is to choose the smallest unit that holds your belongings safely while leaving enough room to reach anything you may need during the rental. If you are storing everything for a house move and will not return until removal day, you can pack more tightly. If you are running a business and collecting stock each week, extra room to make an aisle is worth having.
It also pays to be realistic about the items that tend to be forgotten: garden equipment, bikes, mirrors, televisions, mattresses, children’s toys, spare chairs and the contents of lofts or sheds. These add up quickly.
Storage unit sizes in practical terms
Square footage is useful, but familiar comparisons make the decision easier. The guide below gives a sensible starting point. Exact capacity depends on how efficiently you pack and the shape of individual items.
| Unit size | Best for | Typical contents | |—|—|—| | 15-25 sq ft | Students, bedsits and decluttering | Boxes, suitcases, books, small furniture and seasonal belongings | | 35-50 sq ft | One-room or small flat contents | A sofa, mattress, boxes, small appliances and a bike or two | | 75-100 sq ft | One to two-bedroom homes | Furniture, white goods, beds, wardrobes and plenty of boxes | | 125-200 sq ft | Two to three-bedroom homes or business stock | Larger furniture sets, appliances, tools, archive boxes or racked stock | | 250-500 sq ft | Large home moves and major business overflow | Contents of larger properties, bulky equipment or stock volumes up to two large lorries |
15 to 25 sq ft: small storage without wasted space
A 15 sq ft unit is roughly locker-sized and works well for bedsit contents, student belongings or a targeted declutter. It is a practical choice if you need somewhere secure for boxes, clothes, a small desk, kitchen equipment and personal possessions between tenancies.
This size can also suit homeowners who need to clear one room before decorating or selling. Pack boxes in similar sizes so they stack properly, and take apart small furniture where possible. It will not suit a full flat move with sofas and major appliances, so do not try to force a larger job into a small unit simply to save a little money.
35 to 50 sq ft: a useful size for small moves
For a studio flat, a room in a shared house or the contents of one or two rooms, 35 to 50 sq ft is often the sensible middle ground. It can take a mattress, compact sofa, boxes, chairs and smaller household items when packed carefully.
This is also a popular option during renovations. You can move furniture out of a living room or bedroom, protect it from dust and paint, and keep your home usable while the work is completed. If you need to retrieve tools or belongings regularly, leave a narrow walkway rather than filling every inch.
75 to 100 sq ft: for one to two-bedroom home contents
A 75 to 100 sq ft unit is a strong starting point for a one or two-bedroom flat or house. It can accommodate common household furniture, including beds, wardrobes, sofas, dining furniture, white goods and boxed possessions.
The difference between these sizes often comes down to bulky items. A corner sofa, several large wardrobes, exercise equipment or a garage’s worth of possessions can quickly take you from 75 sq ft to 100 sq ft. If your move is happening in stages, allow for the fact that you may have more items in storage at the halfway point than you expect.
125 to 200 sq ft: room for family homes and working stock
This range suits customers storing the contents of a two or three-bedroom home, particularly where there are larger furniture pieces and plenty of boxes. It can make a house move less pressured when completion dates do not line up, or when you need to clear a property before putting it on the market.
For a business, 125 to 200 sq ft can provide flexible space for tools, equipment, trade supplies, e-commerce stock and archives. The key question is how you will use it. Stock that arrives on pallets or needs sorting needs more operating room than boxes that will remain untouched for several months.
250 to 500 sq ft: large moves and serious overflow
Larger units are designed for the contents of bigger homes, substantial business stock or equipment that would otherwise take over a garage, office or workshop. A 500 sq ft unit can hold a volume comparable with two large lorries, making it suitable for significant moves and commercial storage needs.
These units make sense when storage is part of the plan rather than a short-term overflow. A landlord clearing a property, a retailer holding seasonal stock, or a family moving abroad may need the capacity to organise items properly rather than pile them into the nearest available space.
Three questions that prevent choosing the wrong size
First, will you need access during your rental? For long-term storage that you will not touch, a tightly packed unit is cost-effective. For business stock, documents or items you may need at short notice, choose enough space for clear routes through the unit.
Second, can your furniture be dismantled? Bed frames, tables and shelving units take far less room when taken apart. Keep fixings in labelled bags taped to the relevant item, and protect mirrors, glass and televisions with suitable wrapping.
Third, are you storing items from a whole property or only the obvious furniture? Cupboards, garages and sheds contain more than most people remember. Make a quick room-by-room list before booking. It need not be perfect, but it will highlight whether you are storing ten boxes or fifty.
Pack for the unit you choose
Good packing can make a smaller unit work without making it difficult to use. Use sturdy, stackable boxes rather than mixed carrier bags. Put heavy items in smaller boxes and lighter items in larger ones. Label each box on more than one side, especially if you expect to access it later.
Place mattresses and large flat items against the walls, then build upward with heavier boxes at the bottom. Protect furniture with covers and avoid storing anything damp. White goods should be clean, dry and fully defrosted before storage. Do not store food, flammable materials, gas bottles or anything that could create a safety or pest problem.
If you are unsure, it is better to describe your biggest items and the number of boxes honestly before booking. A clear quote for the right unit is better value than paying to move everything twice.
Price certainty matters as much as size
Storage should solve a problem, not create a new one through confusing charges or a lengthy commitment. Look for a provider that explains the rate clearly, lets you change plans when your circumstances change, and makes loading straightforward. Off-road parking directly outside the building can save a great deal of time when you are carrying furniture, stock or heavy boxes.
The best unit is the one that fits your belongings, your access needs and your budget without pressure to take more space than you need. Make a short inventory, allow for bulky items and leave an aisle only if you will genuinely use it. That is usually enough to choose with confidence.