8 x 4 Shed Extension for Swallow Greenhouses

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Did You Know? All of our Swallow Timber Greenhouses Include DELIVERY & INSTALLATION in the price!


Increase the storage area of your Swallow greenhouse by over 30sq ft and introduce some working space with this 8 x 4 Combination shed.   

If you want an alternative space to store gardening items that you don't need all of the time, various tools, plant pots, bags of compost, use this shed to safely place these goods out of harm's way.

Built like all Swallow greenhouses with Thermowood®, you'll find the combination shed a substantial and very useful add-on, this shed can only be purchased in combination with a Swallow greenhouse.

The timber has been heat treated so has minimal moisture, which means that there's little chance of warping, and over the years it will become an extremely valuable garden resource.

8x4 Shed Extension Features:

  • Suitable to Attach to an Existing Swallow Greenhouse
  • ThermoWood®: Heat treated Scandinavian timber that's rot and warp resistant
  • Roof covering: Vinyl
  • Delivery and installation included in price


  • Width: 2660mm (8ft 9ins) 
  • Depth: 1290mm (4ft 3ins)

Note: A larger 8ft x 6ft version of this combination shed is available.

Select Your Options

Option 1: Would you like your Greenhouse Painted?

  • with ThermoWood® Finish in EARTH


  • with ThermoWood® Finish in OLIVE


  • with ThermoWood® Finish in BRACKEN


  • with ThermoWood® Finish in LILY WHITE


  • with Standard ThermoWood® Finish

Option 2: Please choose a Delivery option -

  • including Delivery/Installation within Scotland (North of Grangemouth)


  • including Delivery/Installation within Mainland UK

Delivery Information


Inclusive delivery and installation is limited to UK Mainland excluding areas 15 miles further North of Glasgow. Areas further than this and Offshore Islands would require a custom quote. Please Contact Us here if this is the case.
A suitable, flat and level base must be prepared prior to the delivery and installation.

Price Promise

If you find any of our products in stock and immediately available, at our competitors we will try out best to match the price. We do not charge extra for delivery or installation, but if you find somewhere cheaper, please Contact Us so that we may try to match the price or beat it.

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