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Swallow Raven 8 x 20 ft ThermoWood Greenhouse
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If you find any of our products on the price promise pages advertised, and in stock and immediately available, at any of our competitors we will endeavour to match the price.
Did You Know? All of our Swallow Timber Greenhouses Include DELIVERY & INSTALLATION in the price!
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At 8ft x 20ft, this is the largest and most spacious of the Raven range, constructed using ThermoWood® to maximize its lifespan as a very attractive and productive traditionally styled greenhouse.
Only Swallow use this heat treated timber which has minimal moisture and resin content, so eliminating expansion and shrinkage. Warping and decay are therefore no longer a problem. Another benefit is that the 20ft x 8ft Raven Greenhouse does not require preservatives, and this will save you money and protect the environment.
The greenhouse is easy to enter through double doors even if you have a wheelbarrow or are carrying gardening tools. Inside you'll discover a very productive growing environment with an impressive eight automatic vents creating a wonderful circulation of fresh air
Toughened glass is fitted as standard as is staging along one side. Options include a high shelf and, if you are keen on re-cycling, a rainwater collection system. A combination shed can also be added as a storage or working area.
Read up on our guide for the benefits of Thermwood® greenhouses.
8x20 Raven Greenhouse Features:
- ThermoWood®: Heat treated Scandinavian timber that's rot and warp resistant
- Glazing bars: 58mm x 34mm finished size
- Bottom Tongue & Groove: 12mm boards, 390mm long
- Doors: Double with mortice lock and aluminium handles
- Glazing: 3mm toughened safety glass, slid into a groove and sealed with quality silicone
- Joints: All the cut shapes are jointed with a clear plastic H section
- Roof Vents: 8 large roof vents with automatic openers
- Staging: Full length on one side with centre support.
- Finial: A specially turned apex finial for that classic look.
- Capping: The ridge and top vents are sealed with a specially machined timber capping.
- Damp Barrier: A 20mm black PVC section is screwed to the bottom
- Stainless Steel Nails: Used to fix all tongue and grooved boards
- Delivery and installation included in price
8x20 Raven Dimensions:
- External Height To Ridge: 237cm (7ft 9ins)
- External Height To Eaves: 173cm (5ft 8ins)
- External Width: 266cm (8ft 9ins)
- External Depth: 636cm (20ft 10ins)
- Door Opening Height: 198cm (6ft 6ins)
- Door Opening Width: 57cm (1ft 10ins)
Dimensions do not include any applicable overhang or guttering, so please ensure that there is sufficient space around your proposed greenhouse base without obstruction, for it to be sited and installed successfully.
Note: A smaller 18ft x 8ft version of this greenhouse is available.
Optional Extras for your Swallow Greenhouse
Staging along one side is included as standard in your Swallow GB Greenhouse, however, an additional High Level Shelf and Extra Staging on the end to make an L shape is an option. The Hunter Gutter and Downpipe Kit allows you to collect and re-use rainwater - the best water for all plants - this is available as an optional extra below.
Please Note: Imagery may show Kingfisher greenhouses of a different size and with optional extras that must be purchased separately. A suitable flat, level and sturdy base must be prepared before the delivery / Installation date to ensure a hassle free installation.
Select Your Options
Option 1: Would you like your Greenhouse Painted?
Your Swallow Greenhouse frame can be painted in a multitude of colours at a small additional cost to perfectly match your outdoor space. Alternatively, you may order your greenhouse in the standard and natural looking ThermoWood® finish option.
Option 2: Would you like to add Extra Staging?
Your Swallow Greenhouse already comes complete with staging on one side as standard, however you may also add additional staging to fit the back of your chosen Greenhouse to create a full 'L' shape work and storage area.
Option 3: Would you like to add a High Level Shelf?
High-level shelving offers an invaluable storage space for starting off seedlings and general storage of seed packets, gardening tools and gloves, reference books etc.
Option 4: Would you like to add a Rainwater System?
Would you like a Hunter Rainwater System for your greenhouse?
The Hunter Gutter and Downpipe Rainwater System allows you to collect and re-use rainwater - the very best water for all your plants.
Option 5: Please choose a Delivery option -
Additional Accessories for your Greenhouse
Would you like to add any of the below accessories to further enhance your greenhouse?
Important Covid-19 Update - Tuesday 13th April 2021
Delivery timeframes have been extended to up to:
- 35-week delivery time frame for standard Thermowood frames
- 35-week delivery timeframe for Oiled frames
- 35-week delivery timeframe for Painted frames
This is due to these greenhouses being made to order and crafting/delivery restrictions caused by Covid-19.
Fast Free Delivery within Mainland England and Wales.
Inclusive delivery and installation is limited to mainland England, Wales and Scotland up to a maximum of 15 miles further North of Glasgow.
Unfortunately, Swallow greenhouses cannot be delivered and installed to areas of Scotland above 15 miles North of Glasgow, Scottish Highlands, Offshore Islands and Isles, Northern Ireland, or the Republic of Ireland.
Delivery will typically be made within 4 - 6 weeks due to this product being handmade. working days but may be extended during busy times of the year.
Bespoke Product Procedure
This product range is made to order on an order-by-order basis, therefore is exempt from our usual cancellation and returns policy. Any cancellations after your order has started production may not be able to be cancelled or may be subject to cancellation charges. Although a very rare occurrence, this does not affect any orders that arrive damaged or faulty, whereby our normal terms on receiving a faulty product will apply.
Vehicles We Use
Items will be delivered on larger lorries which can get to most places it's typically, a 7.5 ton lorry which is about the size of a dustbin lorry, this will depend on the item that is being delivered and should you have any concerns with restricted access to your property we ask you to contact us prior to placing an order.
Unloading Of Your Delivery
Due to the nature of this product, delivery will be made to the front of the property to the nearest location. Our drivers will not carry these items inside your home or back garden. When the item is delivered on a pallet, the pallet and packaging are non-returnable. Goods can only be manoeuvred on a flat and level surface (i.e. not a gravel driveway) by a pallet truck. On some occasions the driver will split the package to assist with manoeuvring of the item. Once you are happy, we will ask you to check the condition of the goods and sign for the delivery.
A suitable, flat and level base must be prepared prior to the delivery and installation - please ensure that this is pre-prepared prio to the arrival of your greenhouse and the installation team.
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