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Swallow Raven 8x18 Painted Wooden Greenhouse

Swallow Raven 8x18 Painted Wooden Greenhouse
Delivery 8-12 weeks ⛟
Free Installation
Click to enlarge - For illustration purposes.

Quick Code: P174958

SAVE £25 EXTRA

Pay ONLY £8359 TODAY!

Use code SUMMER25 at checkout
  • 8ft 8" wide x 18ft 9" deep
  • Wide access for wheelbarrows.
  • ThermoWood Construction.
  • Painted Finish as Standard.
  • 3mm Toughened Glazing.
  • 6 Opening Roof Vents.
  • Double Doors with Mortise Lock.
Greenhouse Size Diagram

Greenhouse Dimensions

A: Greenhouse width

2660mm (8′ 8″)

B: Greenhouse depth

5730mm (18′ 9″)

C: Ridge height

2660mm (8′ 8″)

D: Eaves height

1730mm (5′ 8″)

E & F: Door Size

1200mm (3′ 11″) x 1940mm (6′ 4″) (aperture)

Minimum Base Size

2660mm (8′ 8″) x 5730mm (18′ 9″)

Customise your Greenhouse

More Sizes:

Painted Finish

Lily White
Bracken
Olive
Railings
Oxford Stone
Vert de Terre
Purbeck Stone
Moles Breath
Lulworth Blue
Black

Painted Finish information

The paint is applied in Swallow’s specialist spray booth with an opaque protective top coat with a flexible microporous film. This paint finish is resistant to bacterial mold and UV sun damage. Custom colours are available for an additional cost and will be colour matched to your choice using Swallow’s in-house specialist paint.

Lily White - £0.00
Lily White

Bracken - £0.00
Bracken

Olive - £0.00
Olive

Railings - £0.00
Railings

Oxford Stone - £0.00
Oxford Stone

Vert de Terre - £0.00
Vert de Terre

Purbeck Stone - £0.00
Purbeck Stone

Moles Breath - £0.00
Moles Breath

Lulworth Blue - £0.00
Lulworth Blue

Black - £0.00
Black

Add Premium options?

Premium Cresting
+ £600

Finish of the styling of your Swallow greenhouse with the traditional premium aluminium cresting and finials.

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Premium options information

Premium Aluminium Cresting - £600.00
Premium Aluminium Cresting

Finish of the styling of your Swallow greenhouse with the traditional premium aluminium cresting and finials.


Black Ornate Door Handle - £33.00
Black Ornate Door Handle

Add a black wrought iron ornate door handle. Price is for one handle per door


Add Additional Staging and Shelving?

High Level Shelf Oiled Finish
+ £257

Add a 250mm wide high level shelf for extra storage of plants, seeds and tools etc

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Extra Side of Staging Oiled Finish
+ £513

Add another side of staging to the other side of your greenhouse.

Additional Staging and Shelving information

High Level Shelf Oiled Finish - £257.00
High Level Shelf Oiled Finish

Add a 250mm wide high level shelf for extra storage of plants, seeds and tools etc


Extra Side of Staging Oiled Finish - £513.00
Extra Side of Staging Oiled Finish

Add another side of staging to the other side of your greenhouse.


Add Rainwater Systems?

Black Rainwater System
+ £425

Add a Black Rainwater System to collect and reuse all of that lovely rainwater. Rainwater is after all the best water for your plants.

Rainwater Systems information

Black Rainwater System - £425.00
Black Rainwater System

Add a Black Rainwater System to collect and reuse all of that lovely rainwater. Rainwater is after all the best water for your plants.


Add Dwarf Wall Option?

Dwarf Wall Version
+ £

Order this Greenhouse customised to sit on a brick dwarf wall. Select this option and we'll send you a wall plan to give to your brick layer to complete your wall. We'll then install a version of this greenhouse with a window sill straight onto the wall.

Dwarf Wall Option information

Dwarf Wall Version - £
Dwarf Wall Version

Order this Greenhouse customised to sit on a brick dwarf wall. Select this option and we'll send you a wall plan to give to your brick layer to complete your wall. We'll then install a version of this greenhouse with a window sill straight onto the wall.


Add More Useful Extras?

Painted Side Vent
+ £168

Give your greenhouse extra ventilation by letting cool air flow in to regulate the temperature and humidity inside.

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Swallow Wren Cold Frame Painted Finish
+ £531

Add a Wren Coldframe to give even more room for seedlings and plants. Dimensions: 2ft 1” X 4ft 5”

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Swallow Sparrow Frame Painted Finish
+ £625

4ft x 3ft Cold Frame with toughened Safety Glass.

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Bench with Shelf Oiled Finish
+ £326

Add a useful work bench with lower shelf that you can move around the greenhouse to suit you. Dimensions: 1200mm x 540mm

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Additional Double Greenhouse Door Painted Finish
+ £772

Add an additional double door to the rear of your greenhouse for access back and front.

External painted Shed Door (With Shed Extension Only)
+ £464

Add a door at the rear of your shed extension.

More Useful Extras information

Painted Side Vent - £168.00
Painted Side Vent

Give your greenhouse extra ventilation by letting cool air flow in to regulate the temperature and humidity inside.


Swallow Wren Cold Frame Painted Finish - £531.00
Swallow Wren Cold Frame Painted Finish

Add a Wren Coldframe to give even more room for seedlings and plants. Dimensions: 2ft 1” X 4ft 5”


Swallow Sparrow Frame Painted Finish - £625.00
Swallow Sparrow Frame Painted Finish

4ft x 3ft Cold Frame with toughened Safety Glass.


Bench with Shelf Oiled Finish - £326.00
Bench with Shelf Oiled Finish

Add a useful work bench with lower shelf that you can move around the greenhouse to suit you. Dimensions: 1200mm x 540mm


Additional Double Greenhouse Door Painted Finish - £772.00
Additional Double Greenhouse Door Painted Finish

Add an additional double door to the rear of your greenhouse for access back and front.


External painted Shed Door (With Shed Extension Only) - £464.00
External painted Shed Door (With Shed Extension Only)

Add a door at the rear of your shed extension.


Combination Shed

Combination Shed Extension 8ft x 4ft
+ £1,455

Add this useful 8ft x 4ft combination shed to the back of your greenhouse for extra storage. Comes with Floor and 2 Side Shelves

Combination Shed Extension 8ft x 6ft
+ £1,867

Add this useful 8ft x 6ft combination shed to the back of your greenhouse for extra storage space. Comes with Floor and 2 Side Shelves

Combination Shed Extension 8ft x 8ft
+ £2,277

Add this useful 8ft x 8ft combination shed to the back of your greenhouse for extra storage. Comes with Floor and 2 Side Shelves

Combination Shed Extension 8ft x 10ft
+ £2,661

Add this useful 8ft x 10ft combination shed to the back of your greenhouse for extra storage space. Comes with Floor and 2 Side Shelves

Combination Shed information

Please note that you cannot have a dwarf wall version if you add a shed extension.

Combination Shed Extension 8ft x 4ft - £1455.00
Combination Shed Extension 8ft x 4ft

Add this useful 8ft x 4ft combination shed to the back of your greenhouse for extra storage. Comes with Floor and 2 Side Shelves


Combination Shed Extension 8ft x 6ft - £1867.00
Combination Shed Extension 8ft x 6ft

Add this useful 8ft x 6ft combination shed to the back of your greenhouse for extra storage space. Comes with Floor and 2 Side Shelves


Combination Shed Extension 8ft x 8ft - £2277.00
Combination Shed Extension 8ft x 8ft

Add this useful 8ft x 8ft combination shed to the back of your greenhouse for extra storage. Comes with Floor and 2 Side Shelves


Combination Shed Extension 8ft x 10ft - £2661.00
Combination Shed Extension 8ft x 10ft

Add this useful 8ft x 10ft combination shed to the back of your greenhouse for extra storage space. Comes with Floor and 2 Side Shelves


Combination Shed

Painted Combination Shed Extension 8ft x 4ft
+ £1,819

Add this useful 8ft x 4ft combination shed to the back of your greenhouse for extra storage.

Painted Combination Shed Extension 8ft x 6ft
+ £2,333

Add this useful 8ft x 6ft combination shed to the back of your greenhouse for extra storage.

Painted Combination Shed Extension 8ft x 8ft
+ £2,846

Add this useful 8ft x 8ft combination shed to the back of your greenhouse for extra storage space.

Painted Combination Shed Extension 8ft x 10ft
+ £3,358

Add this useful 8ft x 10ft combination shed to the back of your greenhouse for extra storage space.

Combination Shed information

Painted Combination Shed Extension 8ft x 4ft - £1819.00
Painted Combination Shed Extension 8ft x 4ft

Add this useful 8ft x 4ft combination shed to the back of your greenhouse for extra storage.


Painted Combination Shed Extension 8ft x 6ft - £2333.00
Painted Combination Shed Extension 8ft x 6ft

Add this useful 8ft x 6ft combination shed to the back of your greenhouse for extra storage.


Painted Combination Shed Extension 8ft x 8ft - £2846.00
Painted Combination Shed Extension 8ft x 8ft

Add this useful 8ft x 8ft combination shed to the back of your greenhouse for extra storage space.


Painted Combination Shed Extension 8ft x 10ft - £3358.00
Painted Combination Shed Extension 8ft x 10ft

Add this useful 8ft x 10ft combination shed to the back of your greenhouse for extra storage space.


Scottish Delivery areas and charges

Free UK and Scottish Delivery Areas
+ £0

Areas with in the Black Line are free delivery

Additional Scottish Delivery Charges
+ £250

Areas within the Blue Line incur the following additional delivery charge

Excluded Area's
+ £0

Unfortunately, Swallow cannot deliver to the areas shown

Scottish Delivery areas and charges information

Free UK and Scottish Delivery Areas - £0.00
Free UK and Scottish Delivery Areas

Areas with in the Black Line are free delivery


Additional Scottish Delivery Charges - £250.00
Additional Scottish Delivery Charges

Areas within the Blue Line incur the following additional delivery charge


Excluded Area's - £0.00
Excluded Area's

Unfortunately, Swallow cannot deliver to the areas shown


The 8ft x 18ft Swallow Raven Painted Wooden Greenhouse is a great size for growing a family sized crop of vegetables. It`s practical double door design gives easy access and it`s installed for FREE !

3mm Toughened glass is standard on all Swallow wooden Greenhouses and is held in special grooves within the frame and then sealed in place with quality silicone. Inward opening double doors with mortise locks are also standard.

Each roof vent is supplied with Bayliss XL autovents to automatically open the roof vents when you`re not around to stop over heating. You also get a full length of slatted staging down one side of the greenhouse for working on and storing your plants.

The Painted finish Swallow Raven is the finest 8ft wide wooden greenhouse available today and when you consider it has a 12 Year Warranty and free installation it`s not hard to understand why we rate Swallow wooden greenhouses so very highly.

  • 2660mm (8ft 9") Wide Wooden Greenhouse - Wide access for wheelbarrows etc
  • ThermoWood Construction - Heat treated high performance timber.
  • Painted Finish as Standard - Evenly Spray Applicated.
  • 3mm Toughened Glazing - Safe, Strong and Family Friendly.
  • 6 Opening Roof Vents - For Ventilation.
  • 6 Bayliss XL Autovents - Automatically opens your roof vents.
  • Double Doors with Mortise Lock - Wide access and Security
  • Bottom Boards 12mm - Tongued and Grooved with stainless steel nails.
  • Glazing Grooves to hold glazing - Solid and Silicone Sealed.
  • Full length of Slatted Staging to one side - 520mm wide, 745mm high.
  • 20mm Black PVC Damp Barrier - Screwed to bottom for rising damp protection.
  • 12 Year Warranty - on frame and base.
  • Installation Included in Price - Just order and everything is done for you !

Delivered and Installed within 8-12 weeks from the date that you confirm your base is ready for all finishes.

Greenhouse Size Diagram

Greenhouse Dimensions

A: Greenhouse width

2660mm (8′ 8″)

B: Greenhouse depth

5730mm (18′ 9″)

C: Ridge height

2660mm (8′ 8″)

D: Eaves height

1730mm (5′ 8″)

E & F: Door Size

1200mm (3′ 11″) x 1940mm (6′ 4″) (aperture)

Minimum Base Size

2660mm (8′ 8″) x 5730mm (18′ 9″)

Swallow Installation Access

Larks and Robins: The minimum access height required for installation

1727mm (5′ 7″)

Cygnet, Jay, and Kingfishers: The minimum access height required for installation, no access through a property.

2032mm (6′ 8″)

Mallard, Swan, Raven, Rook, Falcon, and Eagles: The minimum access height required for installation, no access through a property.

2672mm (8′ 9″)

Always use MM dimensions when planning and building your base: No right angle turns between the access point and installation site.

Please contact us if you have any questions regarding your base area or site.

Thermowood Greenhouse
Why is ThermoWood the Best?

ThermoWood is a thermally modified timber known for its durability and stability in harsh weather.

painted Panel
Painted Finish

Swallow apply 3 Layers of spray applicated paint to give a beautifully even finish.

Greenhouse Roof Auto Vents
Autovents as Standard

Swallow use high quality Bayliss XL Automatic roof vent openers as standard on every roof vent. Even when you're not around your greenhouse will be well ventilated.

Swallow Staging Included
Staging Included

Swallow include a length of slatted staging with all greenhouses that is 520mm wide and 745mm high.

YouTube video thumbnail
Installation Included

Swallow Greenhouses are delivered and installed countrywide for free. You simply order your new greenhouse and it will be delivered and erected in your garden by a Swallow fitting team.

Swallow Greenhouse Damp Barrier
Damp Barrier

20mm black PVC section screwed to the bottom of the greenhouse stops damp rising into the timber.

Swallow Products
Swallow Products

Swallow GB Ltd prides itself on its attention to detail, offering products that are not only functional but also enhance the beauty of any garden. Their greenhouses are built to last, with features like toughened safety glass and automated ventilation systems, ensuring an optimal growing environment..

Swallow 12 Year Warranty
12 Year Warranty

Swallow products come with a 12 year warranty that covers the Timber for Rot, Decay and Insect Infestation. Buildings must be re-treated inside and outside annually with a high-quality wood preserver according to the maintenance advice

Frequently Asked Questions

  • What is the best base for a Wooden Greenhouse?

    Wooden Greenhouses are very heavy, so the base needs to be solid! We recommend a base of either concrete or well-laid slabs. However, for smaller greenhouses, decking can also be a good option. If you want soil inside your greenhouse, you can make a perimeter base from bricks laid onto concrete footings.

  • What size should my base be?

    If you look at the Greenhouse Dimensions diagram on this page you will see "Minimum Base Size", use that. We will also email/post you a base plan for you to work from. Easy!

  • How do I maintain my Wooden Greenhouse?

    We recommend that you apply a good quality wood preserver within 3 months of your greenhouse installation. Then apply a protective coat yearly thereafter. It’s easy to do and your greenhouse will love you for it!

  • What access do our fitters need to install the greenhouse?

    First things first, these greenhouses cannot be brought through your house or garage, as the panels are too large to fit through any normal doorway. We need a straight-through run with no height restrictions or right-angle turns as the panels are too long/high to go around tight bends.

  • I want a dwarf wall model, how does that work?

    OK, so if you select the Dwarf Wall Option for your new greenhouse you will receive a Wall Plan by email and post. You can give this Wall Plan to your builder and they will be able to build a wall to the exact size we need to install your greenhouse onto.

  • I don’t see the paint colour I want, can you help?

    No problem, if you get the RAL code for the paint colour you want we can paint the greenhouse in that colour. This service does attract a 15% increase in the paint price.

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