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Swallow Mallard 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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The T-shaped 8ft x 20ft Mallard greenhouse will make a magnificent addition to your garden. It's classically styled and built to last with highly durable Thermowood®.
Thermowood is Scandinavian timber which has been heat treated to remove moisture, it has minimal expansion and shrinkage, and therefore is highly unlikely to warp. The wood is also rot-resistant and doesn't need to be treated with preservatives, making it ideal for long term use outdoors.
Four opening vents create a lovely flow of air that your plants will certainly appreciate, and 3mm toughened real glass glazing lets in masses of light. Inside you'll find two front returned stagings as standard, although more for the rear can be added, as well as shelving throughout.
The greenhouse that's illustrated is sited on a dwarf wall however as standard the building is constructed on a boarded base. Both are very attractive and are designed to support your garden preferences.
Read up on our guide for the benefits of Thermwood® greenhouses.
8x20 Mallard Features:
- Available with Boarded Base or Dwarf Wall-Ready
- Crafted from Heat-Treated (Thermowood) Scandinavian Red Wood Pine
- Rot, Warp & Shrink Resistant Properties
- Real 3mm Toughened Glazing Panes
- Single Door Entry with Mortice Lock
- Ridge & Top Vent Capping Seals
- Stainless Steel Nails & Silicone Sealant
- Includes: 6 Roof Vents
- Includes: 6 Automatic Roof Openers
- Includes Left & Right Front Stanging
- Includes: Damp Proof PVC Floor Membrane
- Includes Delivery & Installation
8x20 Mallard Dimensions:
- External Height To Ridge: 266cm (8ft 9ins)
- External Height To Eaves: 173cm (5ft 8ins)
- Greenhouse Width: 609cm (19ft 11ins)
- Greenhouse Depth: 266cm (8ft 9ins)
- Porch Width: 204cm (6ft 8ins)
- Porch Depth: 74cm (2ft 5ins)
- Door Opening Height: 198cm (6ft 6ins)
- Door Opening Width: 57cm (1ft 10ins)
- Glazing Bars: 58mm x 34mm
- Board Thickness: 12mm
Please Note: Imagery may show this model greenhouse in 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 and Installation date to ensure a hassle-free installation.
Select Your Options
Design: Standard or Dwarf Wall
Swallow GB Greenhouses have the option to be built as a Standard design or onto a Dwarf Wall.
If you decide on the Dwarf Wall version, a wall height of around 607mm will need to be built beforehand by yourself, in which a wall plan will be sent to you in advance to pass onto your builder in order to construct the wall to the correct dimensions.
Once delivered, your Greenhouse will then be Installed to sit on top of the wall if this option is chosen.
Design: Greenhouse Colour
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.
Design: Appearance Additions
Would you like to add any of the below accessories to your greenhouse?
Accessories: Extra Rear Staging
Your Swallow Greenhouse already comes complete with a set of staging at the front as standard, however you may also add an extra unit at the rear to create a larger work and storage area.
Accessories: 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.
Design: Porch Extension
Increase the porch length from the standard 2ft 5ins depth to 4ft 5ins or 6ft 6ins depth.
Design: Porch Extension Shelving
If you're having your porch extended and also purchasing high-level front returned shelving, you will also need to choose this option to ensure that the shelving is extended to the depth of your extended porch.
Accessories: Rainwater System
The Hunter Gutter and Downpipe Rainwater System allows you to collect and re-use rainwater - the very best water for all your plants. This guttering system comes included with this Greenhouse model, so please choose your required colour option.
£7,766.00 inc. VAT
Sorry, this item is out of stock.
Important Covid-19 Update - Tuesday 16th February 2021
Delivery timeframes have been extended to up to:
- 25 weeks delivery time frame for standard Thermowood frames
- 25 weeks delivery timeframe for Oiled frames
- 30-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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