Swallow 8'-3 x 18'-6 Eagle
Swallow 8'-3 x 18'-6 EagleSwallow 8'-3 x 18'-6 EagleSwallow 8'-3 x 18'-6 Eagle
Swallow 8'-3 x 18'-6 EagleSwallow 8'-3 x 18'-6 EagleSwallow 8'-3 x 18'-6 Eagle

Swallow 8'-3 x 18'-6 Eagle

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Full accessory information lower down page

free delivery
all greenhouses!





Lead Times By Finish
5 Weeks Thermowood
5 Weeks Oiled Models
10 Weeks Painted Models
North of Ayr Scotland
West of A377 Devon
12-14 Weeks

The 8x18 is 14 bays long (away from door). Main photo shows a 8x13 which is 10 bays long.

Payment Options.
1- Choose to pay the full balance with your order via our secure checkout.
2- Pay 20% deposit only to us with the balance payable to Swallow on installation. Choose the "Wooden Deposit" option when you get to the payment options page in the checkout process.  Nothing to pay at this moment.

New to the Swallow range of thermowood greenhouses is the Victorian style 8x18 Eagle, this imposing greenhouse has been designed to offer a traditional look made with modern day methods delivered and installed straight from Swallow's Yorkshire factory. With a magnificent 3 meter high roof at a steep angle combined with narrow 15" wide glass panes throughout, Iron handles and full length of cresting with a high boarded bottom this is a stunning greenhouse.
Swallow 8x18 Eagle greenhouses are traditionally built using Thermowood glazing bars of a sturdy 58mm x 32mm thickness. Thermowood is a heat treated timber that is extremely strong and long lasting with an attractive even finish, the process removes moisture and resin leaving a tight grain which is extremely resistant to the weather and perfect for outdoor buildings. Some of the features that are included in the price are:-
  • 6 large double bay roof windows, each vent comes with a black automatic opener
  • 6 single side windows and 1 large double rear window
  • Full length of staging down one side
  • Full Length high shelf down one side
  • High quality cast cresting and finials
  • Full guttering with down pipes
  • Iron window latches and handle.
  • Large lockable door
  • Long pane toughened glass
  • 20mm PVC damp proof barrier
  • Delivered and installed by Swallow

With all the above including staging, shelf, guttering, autovents, and side vents the Eagle comes with just about everything you need as standard!

Swallow greenhouses have a high eaves height for more comfortable working space, are boarded around the bottom (can be adjusted for a dwarf wall) and can be purchased with the attractive natural thermowood finish or you can choose to have your greenhouse painted in a choice of high quality colours See Below.

Our View
The 8x18 Swallow Eagle greenhouse is a fantastic looking greenhouse, huge spacious feel with a very Victorian look. Using the highest quality materials and built to Swallow's strict standards then delivered and installed in your garden. Sure to be the centre piece in your garden!

Roof Windows:  6 Large Double
Autovents:  6 Black Bayliss
Side Windows:  6 Single
Rear Window:  Large Double
Staging Included:  Down 1 Side
Shelf Included:  Down 1 Side
Finials & Cresting:  Classic Looks
High Roof Ridge:  Steep Pitch
Narrow Glass Panes:  Victorian Style
Large Hinged Door:  Lockable
Toughened Glass:  Safety & Looks
Iron Handles:  Stylish
Thermowood Frame:  Long Lasting & Attractive
Guttering:  Full System
Greenhouse Boarded All Around:  12mm Thick Tongue & Groove
Glazing Slid Into Groove:  Silicone Sealed
Turned Apex Finial:  Classic Look
Machined Timber Capping:  Ridge & Roof Vents
20mm PVC Damp Barrier:  Keeps Wood Above Standing Water
Delivered & Installed:  Hassle Free
Quality Paint Finishes:  Enhanced looks
10 Year Warranty:  Framework

All Swallow greenhouses are now made from Thermowood.
Heat and steam are used to thermally modify the wood to produce an exceptionally strong and durable wood that is perfect for outdoor use.
This process is achieved using natural methods and is non-toxic and chemical free, with one of the many benefits being improved insulation well suited for greenhouses.
After treatment the wood is a beautiful consistent colour that will last far longer than normal treated timber.


A: 2526mm (8ft 3")

B: 5654mm (18ft 6")

C: 3000mm (9ft 10") 

D: 1690mm (5ft 7")

E: 1940mm (6ft 5")

F: 756mm (2ft 6") 

 mm exact : inches approx

Swallow greenhouses are delivered and installed at the same time by Swallow. A firm and level base area will need to be ready such as slabs, concrete, decking, sleepers or similar.

 Nobody delivers faster than South West Greenhouses!

Our goal is that all orders are processed the same day as we take your completed order (or Swallows next working day)
We don't "sit" on them as some suppliers do, this means that you get your greenhouse in the quickest delivery time possible.

Free delivery to the whole of mainland UK as far North as Grangemouth Scotland

Expected delivery time for Swallow greenhouses

Weeks for Thermowood Finish buildings

5 Weeks for Oiled Finish buildings

10 Weeks for Painted Finish buildings

Deliveries North of Ayr Scotland & West of A377 in Devon are 12-14 Weeks for all finishes




 Scroll down for options information

Thermowood  Olive Green  Bracken Green  Black  Lily White
Meadow Green Cloud Grey Robin's Egg Blue Stone Lead Grey

Choose to have your greenhouse in natural finish Thermowood or painted in one of 9 attractive colours (some exclusive to us)
An oil service is available on Thermowood, this is professionally sprayed by Swallow and will help protect the frame from the elements, preserving the colour of the wood and reducing water stains and sun bleaching.

We also offer a colour matching service, using Swallows in house paint facility we can match most colours if you are trying to coordinate! Phone us with your choice.

Swallow have their own spray booth facility which enables them to paint their greenhouses to a high quality finish. Painted before glazing and sometimes in component form for a seamless finish.
The paint used is a water borne acrylic which has a flexible microporous protective film, this top quality paint is resistant to bacterial mould and UV attack.

Boarded or Dwarf Wall


Choose to have your greenhouse fully boarded around the bottom or choose to build a dwarf wall to replace the bottom boarding, a window cill style bottom will be made and a wall plan emailed to you to give to your builder. 

Dwarf Wall

High Shelf
Perfect for all those pots and tools you can choose to add an extra shelf which runs the whole length of your greenhouse.

Can be painted to match your chosen frame colour.

Extra Staging
If you need more work space for your potting and planting you can choose to add another full length of staging to add to the one you get as standard.

Can be painted to match your frame.


These high quality 2 tier slatted benches are free standing and can be placed where you wish, these are suitable for inside or outside use.

Available in 4ft or 6ft lengths.

Can be painted to match.


Sparrow & Wren Cold Frames
  Matching cold frames sturdily built with toughened glass hinged roofs.

Sparrow is 4'5 long by 2'1 wide
Wren is 4'5 long by 3'4 wide

Can be painted to match.
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