Swallow Mallard 8 x 20 ft ThermoWood Greenhouse

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Description

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.

Key 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 Staging
  • Includes Damp Proof PVC Floor Membrane
  • Includes Delivery & Installation

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.

Specification

Board Thickness: 12mm
Brand: Swallow
Door Opening Height: 198cm (6ft 6in)
Door Opening Width: 57cm (1ft 10in)
External Height To Eaves: 173cm (5ft 8in)
External Height To Ridge: 266cm (8ft 9in)
Frame Material: Wood
Glazing Bars: 58mm x 34mm
Greenhouse Depth: 266cm (8ft 9in)
Greenhouse Width: 609cm (20ft)
Nominal Size: 8ft x 20ft
Porch Depth: 74cm (2ft 5in)
Porch Width: 204cm (6ft 8in)
Treatment: Heat Treated
Type: Freestanding

Videos

Select Your Options

Design: Standard or Dwarf Wall

as Wooden Board Base Design

as Wooden Board Base Design

as Dwarf Wall-Ready Design

as Dwarf Wall-Ready Design

Would you like your Greenhouse Painted?

with Standard ThermoWood® Finish

with Standard ThermoWood® Finish

with Natural Oiled ThermoWood® Finish

with Natural Oiled ThermoWood® Finish

with ThermoWood® Finish in EARTH

with ThermoWood® Finish in EARTH

with ThermoWood® Finish in LILY WHITE

with ThermoWood® Finish in LILY WHITE

with ThermoWood® Finish in BRACKEN

with ThermoWood® Finish in BRACKEN

with ThermoWood® Finish in OLIVE

with ThermoWood® Finish in OLIVE

with ThermoWood® Finish in CLOUD GREY

with ThermoWood® Finish in CLOUD GREY

with ThermoWood® Finish in OXFORD STONE

with ThermoWood® Finish in OXFORD STONE

with ThermoWood® Finish in ROBINS EGG BLUE

with ThermoWood® Finish in ROBINS EGG BLUE

with ThermoWood® Finish in SLATE

with ThermoWood® Finish in SLATE

with ThermoWood® Finish in SUMMER GREEN

with ThermoWood® Finish in SUMMER GREEN

Design: Appearance Additions

with Ornate Black Door Handle

with Ornate Black Door Handle

Instead of the standard silver effect door handle, upgrade to a more traditional colour and style with this ornate black handle.
with Black Metal Greenhouse Cresting

with Black Metal Greenhouse Cresting

A full set of black metal cresting for the roof of your greenhouse.

Would you like to add Extra Staging?

with Rear ThermoWood® Staging

with Rear ThermoWood® Staging


Additional staging for the rear of your Greenhouse in a standard ThermoWood® (unpainted) finish.
with Rear ThermoWood® Staging Oiled

with Rear ThermoWood® Staging Oiled


Additional staging for the rear of your Greenhouse with an Oiled ThermoWood® finish.

Would you like to add a High Level Shelf?

with Rear ThermoWood High Shelf

with Rear ThermoWood High Shelf

Add a high-level shelf to the rear of your greenhouse. Supplied in a standard ThermoWood none painted finish.
with Rear ThermoWood High Shelf Oiled

with Rear ThermoWood High Shelf Oiled

Add a high-level shelf to the rear of your greenhouse. Supplied in an oiled ThermoWood finish.
with Front Returned ThermoWood High Shelving

with Front Returned ThermoWood High Shelving

Add a set of high-level shelving to the front of your greenhouse, following the L-shaped pattern of the greenhouses' design. Supplied in a standard ThermoWood none painted finish.
with Front Returned ThermoWood High Shelving Oiled

with Front Returned ThermoWood High Shelving Oiled

Add a set of high-level shelving to the front of your greenhouse, following the L-shaped pattern of the greenhouses' design. Supplied in an oiled ThermoWood finish.

Design: Porch Extension

with Porch Extension to 4ft 5ins (Thermowood)

with Porch Extension to 4ft 5ins (Thermowood)

Extends the porch depth from 2ft 5ins to 4ft 5ins in standard Thermowood.
with Porch Depth Extension to 4ft 5ins (Oiled Thermowood)

with Porch Depth Extension to 4ft 5ins (Oiled Thermowood)

Extends the porch depth from 2ft 5ins to 4ft 5ins in oiled Thermowood.
with Porch Depth Extension to 4ft 5ins (Painted)

with Porch Depth Extension to 4ft 5ins (Painted)

Extends the porch depth from 2ft 5ins to 4ft 5ins in painted Thermowood, matched to your chosen paint colour for the main greenhouse frame as per your selection above.
with Porch Depth Extension to 6ft 6ins (Thermowood)

with Porch Depth Extension to 6ft 6ins (Thermowood)

Extends the porch depth from 2ft 5ins to 6ft 6ins in standard Thermowood.
with Porch Depth Extension to 6ft 6ins (Oiled Thermowood)

with Porch Depth Extension to 6ft 6ins (Oiled Thermowood)

Extends the porch depth from 2ft 5ins to 6ft 6ins in oiled Thermowood.
with Porch Depth Extension to 6ft 6ins (Painted)

with Porch Depth Extension to 6ft 6ins (Painted)

Extends the porch depth from 2ft 5ins to 6ft 6ins in painted Thermowood, matched to your chosen paint colour for the main greenhouse frame as per your selection above.

Design: Porch Extension Shelving

with High Shelf for 4ft 5ins Porch Extension

with High Shelf for 4ft 5ins Porch Extension Oiled

with High Shelf for 6ft 6ins Porch Extension

with High Shelf for 6ft 6ins Porch Extension Oiled

Would you like to add a Rainwater System?

with Swallow Hunter Rainwater System in WHITE

with Swallow Hunter Rainwater System in WHITE


Adds a Rainwater System to your Greenhouse which consists of a Gutter and Downpipe in the required size.
with Swallow Hunter Rainwater System in BLACK

with Swallow Hunter Rainwater System in BLACK


Adds a Rainwater System to your Greenhouse which consists of a Gutter and Downpipe in the required size.

Please choose a Delivery option -

including Delivery/Installation within Mainland UK

including Delivery/Installation within Mainland UK


Delivery and Installation within the Mainland UK is included with your Greenhouse. A flat and level base must be ready prior to delivery. Exceptions: Scotland North of Grangemouth.
including Delivery/Installation within Scotland (North of Grangemouth)

including Delivery/Installation within Scotland (North of Grangemouth)


Delivery and Installation within Scotland North of Grangemouth. A flat and level base must be ready prior to delivery.

Your Selected Options:

  • as Wooden Board Base Design
  • with Standard ThermoWood® Finish
  • with Swallow Hunter Rainwater System in WHITE
  • including Delivery/Installation within Mainland UK

£9,086.40 inc. VAT

Normal Price: £10,096.00

(Saving: £1,009.60)

Delivery Information

Fast Free Delivery within Mainland England and Wales.
Inclusive delivery and installation are 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 or the Scottish Highlands free of charge, so additional costs would apply as detailed in the options above. Delivery and installation can't be carried out to Offshore Islands and Isles, Northern Ireland, or the Republic of Ireland.

Delivery Period
Delivery will typically be made within 5 - 8 weeks for standard Thermowood, Oiled frames, and Painted greenhouses frames to the majority of locations upon ordering, and after confirming that your base area is prepared and ready for installation of your new greenhouse.
*Note: Some delivery locations such as Scotland, Devon, and Cornwall, as well as Ilfracombe, Exeter and anything West off unfortunately currently have extended delivery timeframes due to the additional distance required for the delivery and for our installation team to travel. This can be up to an additional 4 weeks on top of the standard quoted lead times.

All Swallow greenhouses are crafted to order, so maybe 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
Back garden access is required from the front of the property, as due to the size of the product and the large sections that they are delivered in, the installation/delivery team are unable to carry these items inside your home as the sections are unlikely to pass through standard indoor door sizes. When the item is delivered on a pallet, the pallet and packaging are non-returnable. Goods can only be maneuvered on a flat and level surface (i.e. not a gravel driveway) by a pallet truck. If the installation/delivery team is unable to gain access to the installation area from the front of the property, they may not be able to complete the installation, and a cancellation or rebooking charge may apply.

Base Preparation
A suitable, flat, and level base must be prepared prior to the arrangement of delivery and installation, which can affect the delivery and installation timeframe - so please ensure that this is pre-prepared as soon as possible so that your greenhouse can begin production. The installation team will contact you approx 3 weeks in advance and will request a photo of the proposed installation area before being able to confirm a delivery and installation date. This is to ensure that the area is ready and suitable, ensuring successful installation on the day.

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