If you have searched for portable storage buildings, you have probably seen plastic and metal sheds that come flat-packed in a box, ready to bolt together over a weekend. They look like a quick fix for a garden that is short on space. But quick to put up is not always the same as good value, especially once a British winter gets involved.
This guide explains what portable storage buildings actually are, where they fall short, and why a timber building made to fit your garden is often the better choice in the long run.
What is a portable storage building?
A portable storage building is usually a lightweight shed made from plastic, resin or thin metal sheeting. It is called portable because it is light enough to move or take apart, rather than being built on a permanent base. Most are sold flat-packed and put together by the buyer, using panels that click or bolt into place.
They are popular because they are cheap, quick to buy online, and do not need much planning. For someone who just needs somewhere to keep a lawnmower dry for a season, that can be enough.
What people usually want to store
Before choosing any storage building, it helps to think about what is actually going in it. Common items people store in the garden include:
- Bikes, mowers and garden tools
- Bins and recycling boxes
- Garden furniture over winter
- Barbecues, sports gear and camping kit
- Overflow from the house, such as boxes and old furniture
The more you need to store, and the longer you need to store it for, the more a building’s strength and weatherproofing start to matter.
Where portable storage buildings fall short
Portable buildings have real downsides once you look past the low price.
They do not handle weather well. Thin plastic and metal panels can warp, crack or rust over time, especially with strong wind or heavy snow load. A cheap resin shed that looked fine in the shop can bow within a few winters.
They are not very secure. Panels that clip together, or thin walls, are far easier to break into than solid timber. That matters if you are storing bikes, tools or anything valuable.
They rarely last as long. A flat pack storage building is often designed to be replaced every few years, not to last decades. Timber buildings, looked after properly, can last far longer.
Sizes are fixed. You choose from whatever sizes the manufacturer offers, which rarely matches an awkward garden shape exactly. You either end up with wasted space or a building that is too small for what you need.
Portable storage buildings compared with a made-to-measure shed
| Portable storage building | Made to measure timber building | |
|---|---|---|
| Material | Plastic, resin or thin metal | Solid timber |
| Sizes available | Fixed, off-the-shelf sizes | Built to the exact space you have |
| Typical lifespan | A few years | Many years with basic upkeep |
| Security | Lower, thin panels | Higher, solid timber construction |
| Weather resistance | Can warp, crack or rust | Built to handle UK weather |
| Planning permission | Usually not needed | Usually not needed, subject to size and siting rules |
| Assembly | Flat packed, built by the buyer | Delivered and built on site |
Why a made-to-measure shed beats a portable one
Our sheds are built in Danbury, Essex, to the exact size of the space you have, not to a catalogue of standard sizes. That means no wasted gap down the side of the house, and no storage building that turns out too small once everything is inside it. Choose the layout, cladding and colour, and it is built to last, not to be replaced in a few years like a flat pack option.
Got an awkward space instead of a flat rectangle?
Not every garden has a neat, square spot to spare. If the best space you have is a tricky corner, a corner building is designed to make use of exactly that kind of space. It turns an awkward corner into proper, secure storage instead of leaving it empty.
Want something that is not a standard shed shape at all?
If your storage needs do not fit neatly into a shed or a corner building, a bespoke building is built entirely around what you need, whether that is a large store for bulky items or something that combines storage with another use.
Do you need planning permission?
Most garden storage buildings, whether portable or timber, fall under permitted development and do not need planning permission. This depends on the size, height and position of the building. The Planning Portal has full guidance on the rules for outbuildings, including height limits and how close a building can be to your boundary. It is worth checking before you buy, especially for a larger building.
Get storage that is built to last
If you want a storage building that will still be doing its job in ten years, not one you will be replacing in three, get in touch and tell us what you need to store and the space you have. Fill in our enquiry form, and we will help you work out what actually fits.
We have been building timber garden buildings in Danbury, Essex since 1951. Made to measure, built to last, and nothing flat-packed about it.