Storing goods outdoors is usually a decision made under pressure — the racking is full, a delivery has landed, and something has to go outside. This guide covers what can honestly live outdoors in a UK climate, the difference between a catalogue storage shelter and a bespoke industrial canopy, and how to choose a finish that survives more than two winters.
It is written from the specifications of the outdoor shelters and storage products we actually stock. Where we do not sell something — and in this category there is a good deal we do not — we say so and point you somewhere better.
First, the honest split: canopy contractors versus catalogue shelters
Search for an industrial canopy, a warehouse canopy or a covered walkway and almost everything you find will be a design-and-install business: temporary-building specialists, marquee and tent manufacturers, and bespoke steel canopy fabricators. They survey your site, engineer a structure to your span and wind loading, obtain the drawings and erect it. Prices are quoted per project because there is no standard product to price.
That is a genuinely different trade from ours, and it is the right answer for a large span, anything attached to a building, anything needing planning consent or a structural calculation, and any covered walkway between two buildings. If that is your project, a canopy contractor will serve you better than any catalogue, ours included. We would rather say that at the top of the page than let you read to the bottom to find out.
A catalogue storage shelter is the other option: a manufactured, repeatable unit that arrives on a lorry, sits on a prepared surface and protects a defined footprint. No survey, no structural engineer, a known price and a known lead time. It is the right answer for protecting stock, materials, plant, bins or bikes on an existing yard — and it is what this page is about.
What can actually be stored outdoors
The most expensive outdoor storage mistake is not buying the wrong shelter. It is putting the wrong thing under a good one. A roof stops precipitation landing on an item; it does not stop condensation, wind-driven rain, humidity, temperature cycling or theft. Work through these before you buy anything:
- Fine for a covered outdoor shelter: building materials, timber, pipe and bar stock, pallets, aggregates in bags, drums under a proper cover, waste and recycling containers, bikes, and plant that is designed to work outdoors anyway.
- Only with a sealed, lockable unit: tools, small plant, anything with a resale value, anything with a battery, and anything a passer-by could carry. A roof is not security. If it needs to be secure as well as dry, you want a storage vault or a lockable storage cage, not a canopy.
- Not outdoors without specific provision: anything hazardous. Flammables, chemicals, agrochemicals and oils have their own regime, and putting them under a general shelter does not satisfy it — see COSHH cabinets, hazardous storage and spill containment. Drums specifically need a purpose-built unit; we cover that in covered drum stores and storing oil drums safely.
- Never: anything that must not get cold, anything paper-based, and electrical equipment that is not rated for outdoor use. Condensation under a metal roof on a clear night will do damage that rain never would.
If everything on your list falls into the second or third category, the honest conclusion is that you do not need a shelter — you need more indoor space or better use of the height you have. Racking and shelving or long load storage is usually cheaper than a structure.
Material shelters — the WSM range
The WSM outdoor storage canopies and shelters we list are permanent material shelters: a manufactured alternative to leaving stock under a tarpaulin. The specification is the reason to consider them over a cheap cover:
- Solid steel structures with hot-dip galvanising
- Minimum C4 medium corrosion protection — C4 is a corrosivity category, and it is the figure to hold a supplier to if your site is coastal, near a road treated with salt, or in an industrial atmosphere
- Industrial-grade paint finishes over the galvanising
- Integrated water management so runoff is directed rather than dumped at the entrance
- Modular construction — units can be extended rather than replaced when the requirement grows
- Metal roofs, with rear and side walls available in wood or metal, or a combination
A storage canopy of this type is sometimes listed as an equipment shelter, a material shelter or an outdoor storage shelter — the terms describe the same thing, and it is worth searching all of them when comparing suppliers. The manufacturer positions these for building materials, machinery, trolleys and waste containers in industrial, commercial and municipal settings. The modularity is the part worth planning around: it is far cheaper to buy a shelter you can add bays to than to buy one that exactly fits today.
On price, we will not quote you a figure here. The WSM range is configured to the application — span, wall arrangement, roof and finish all move the cost — so it is priced per specification rather than carrying a list price. Tell us the footprint and what is going under it and we will price the actual configuration. Anyone quoting a single headline number for a modular shelter is quoting one variant of it.
Steel shelters we do price — and one detail that catches people out
Alongside the material shelters we stock manufactured steel shelters for specific jobs. The construction across the smoking shelter range is consistent and worth understanding, because it applies to the cycle and bin units too:
- Fabricated from heavy duty box section
- Side panels in either 16 mm twinwall fluted plastic or powder-coated punched steel
- Galvanised sheet steel roof on both variants
Two practical notes come straight from the manufacturer's own specification, and they decide more installations than the panel choice does.
No fixing is required. These units are not bolted into a slab. They are secured using six 600 × 600 mm paving slabs, which are not supplied. That is genuinely good news — no groundworks, no drilling, no reinstatement if you move it — but it means you need a flat, load-bearing surface and you need to source the slabs separately. Budget for them and check the surface before delivery day, not after.
A forklift is needed to unload. This is stated explicitly on the shelter products. A shelter that cannot be got off the lorry is worth nothing, so if you have no forklift on site, arrange plant in advance or tell us and we will confirm the requirement against the model code before the order goes in.
Current pricing on the manufactured steel shelters runs from £1,481.83 for a smoking shelter up to £6,538.68 at the top of the range, with the wall-mounted unit at £1,685.46, the wheeled bin shelter at £1,903.92, and cycle shelters at £5,596.98 and £6,316.92. Panel choice — twinwall versus punched steel — is a genuine specification decision rather than a trim level: twinwall gives shelter and light, punched steel gives ventilation and resists impact and vandalism better.
Smoking and cycle shelters have their own guide, including the rule that decides whether a smoking shelter is legal at all — see the smoking and cycle shelter buying guide and the 50 per cent rule explained. Bin shelters and commercial bin stores are covered in the bin shelter and bin store guide. Browse the range at outdoor shelters and smoking shelters.
Finish is the decision that outlasts every other one
Outdoors, the finish specification matters more than the steel section. Two approaches dominate, and they are not interchangeable:
Hot-dip galvanising gives a metallurgically bonded zinc coating over the whole section, inside and out, including welds and cut edges. It self-protects at scratches. It is the default for anything that will be rained on for years, which is why the WSM shelters and our galvanised cages use it.
Powder coating gives a harder, better-looking, colour-matched surface — but it is a barrier coating. Once it is chipped through to bare steel, corrosion starts underneath and spreads beneath the intact coating. Powder coat over galvanising gets you both, and is what the better outdoor products specify.
The full comparison, including where each one fails, is in galvanised versus powder-coated steel. The short version for outdoor use: if a supplier will not tell you whether a coating is galvanised, powder-coated, or both, assume the cheaper answer.
Secure outdoor storage — when a roof is not enough
A large share of outdoor storage enquiries are really security enquiries. If the concern is loss rather than weather, the products change entirely:
- Storage vaults — fully enclosed lockable steel units, currently £3,131.04 to £7,882.56. The heavier vaults are designed to comply with the Flammable Liquid Storage Regulations 1972 as appropriate and the Factory Inspection Guide HSG51, with skids on the base for fork lifting, and an adjustable vent that meets flammable requirements closed and agrochemical requirements open.
- Storage cages — galvanised mesh cages, welded or knock-down, for secure storage that still needs airflow and visibility. See also the Grenadier range.
- Industrial cupboards and steel cupboards versus lockers where the storage is against a building rather than free-standing.
Note the delivery constraint again: welded steel arrives welded, and several of these units carry the same forklift requirement as the shelters. Knock-down versions exist precisely because a welded cage will not go through a standard doorway or off a van without plant.
Five questions that settle the specification
- Weather, security, or both? Weather alone is a shelter. Security alone is a vault or cage. Both is a vault or a cage inside a shelter — and that is a legitimate answer, not an upsell.
- What is the surface? Manufactured shelters need flat, load-bearing ground. If the yard is soft, unlevel or unmade, the groundworks may cost more than the shelter.
- How does it get off the lorry? Confirm the forklift requirement before ordering, not on delivery day.
- Will the requirement grow? If yes, buy modular and extend. If no, buy the manufactured unit and save the money.
- Is it attached to a building, spanning a walkway, or subject to planning? If yes, you want a canopy contractor and a structural engineer, not a catalogue.
Everything on this page is manufactured in the UK and priced in GBP. If you know the footprint and what is going under it, send us those two facts and we will work back to the right product — including telling you when the right product is not one of ours. Start at outdoor shelters, or see the wider range at GPC Industries.