Alton Evolution Five

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The Alton Evolution 5'6" greenhouse

This 5’6” wide range of greenhouses are ideal for a smaller garden, but as this model is made from the same system as all the bigger Alt0on Evolution models it means that it is an extremely sturdy and practical little greenhouse.

The Western Red Cedar used in these Alton greenhouses is sourced from sustainable forests in Canada and has the same superb qualities that have made Cedar the no 1 choice for greenhouse making for over one hundred years.

Now with this new Evolution system you can combine the beauty and warmth of a Cedar greenhouse with the practicalities and low maintenance associated with Aluminium. The unique Moss colour of the metalwork complements perfectly the Cedar both in its reddish fresh form and its mature weathered silvery-grey colour.

This Evolution Five model comes with Cedar capping as standard and you can upgrade to the maintenance free aluminium capping for an even easier life.

On a small greenhouse it’s very important that you have enough height, so you will find the generous 5’7” high eaves on these models to give you plenty of headroom - ideal for both the optional high level shelf and your working head room.

dimensions logo


A = 1680mm (5'6")

B = From 1346mm to an unlimted length

C = 1700mm (5'6")

D = 2160mm (7'5")

E = 560mm (2')

F = 1800mm (6'2")

Western red cedar

We select only the best Western Red Cedar, supplied from renewable sources as it's the ideal material for use in our greenhouses. Noted for its extraordinary durability, it doesn’t shrink, swell or warp excessively, and readily holds wood stains and micro-porous paints. It has prime insulating qualities and its pleasant aroma is naturally repellent to moths, insects and vermin.

finest-materialsAll of our unpainted greenhouses are factory-treated by total immersion in our Golden Honey cedar preservative prior to delivery which renders it virtually immune to decay, while our painted greenhouse options look stylish in any outdoor setting and are protected with micro porous paint.

If you wish to maintain the original warm, golden honey colour, we recommend you re-treat your frame annually. If not, the wood will gradually fade to its attractive natural appearance - varying from almost pure white of the narrow sapwood to the light straw shade of the heartwood. This will not affect your 10 year framework guarantee.

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Other features and options


Mortice and tenon joints.The Cleverly designed jointing system on the Evolution has the duel benefit of making assembly straight forward and adding strength to the framework.

Aluminium base - This keeps the wood well away from the base where water can sit. Plus this unique design feature allows the glass to sit directly onto the metal base - which means that the side water is not running onto the wood, (which is a 'rot-spot' on other greenhouses) The Metal base is included on every Evolution model, regardless of which kind of capping you choose.

Guttering Takes the water away and allows you to collect it. Included on every model regardless of which kind of capping you choose.

Roof vents. A generous allocation of roof vents is included with every model and every roof vent has an automatic opener included as standard. These clever devices work through heat expansion alone to open your roof vents gradually as the temperature changes. Fully adjustable, they help you to create the perfect growing environment.

Louvres Your new Alton Evolution model will also include one or more louvre windows. These work in tandem with your roof vents - as the automatic roof vents open and release the warm air, the greenhouse effectively sucks air in through the louvres. These can be positioned near the bottom or the top and on most models at the side of the greenhouse or at the rear. Supplied as manual opening as standard and you can add automatic louvre openers if you wish.

The unique Alton Evolution door system includes the low-profile door threshold. This popular feature means that you have no step at the door (many other greenhouses have a step at the door). Models of 8' wide and above have 4' wide access double doors which allow easy entrance for a wheelbarrow or wheelchair.

Upgrade option Aluminium bar capping - With this new Aluminium bar capping system you really can have a virtually maintenance free Cedar greenhouse - and the stylish moss colour blends in perfectly with the cedar as it ages to the distinctive silvery colour.

The eaves height of 5'7" on the Alton Evolution models is excellent and is as much as 18" higher than the lowest greenhouses on the market. The extra height gives you several advantages: There is more air in the greenhouse creating a better growing environment, you have more head room and a higher door, and you have plenty of room for a high level shelf in the greenhouse.


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Alton Evolution Five greenhouse Alton Evolution 5x8 Cedar Greenhouse Alton Evolution 5x6 Cedar Greenhouse Alton Evolution 5x6 Cedar Greenhouse Evolution 5x6 greenhouse Inside an Alton evolution Hazels greenhouse 5x8 Alton Evolution greenhouse A 56 Evolution greenhouse Upgrade to aluminium capping

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