Mercia Octagonal Greenhouse

  • From £699.99
  • RRP £799.99
  • 12 mm Cladding
  • UV Resistant Shatterproof Styrene Windows
  • Dip Treated Finish
  • 2 Sizes Available
Out of Stock | 3 - 7 Working Days Delivery

Other Key Features

  • Storage Shelf Included
  • Octagonal Design 

The Octagonal Greenhouse by Mercia is ideal for both the beginner gardener and those with a green thumb, designed to help you to grow and cultivate your plants with ease. Manufactured from shiplap tongue and groove cladding in supplied in a dip treated finish, this greenhouse features a large single door that can be opened wide to allow heat to escape when needed. 

This Greenhouse is also supplied with styrene windows and roof panels, which have the benefit of being both shatterproof and protective against harmful UV rays. This Greenhouse will require treating as soon as possible after installation, and on an annual basis.

Available in a choice of two sizes, this Greenhouse arrives flat packed with comprehensive assembly instructions and all fittings required. Alternatively, there is also the added option of having installation included. As standard, it is supplied with a 12 month manufacturer warranty, and is also eligible for a 10 year anti-rot guarantee when treated regularly as specified by the manufacturer. 

 Height (mm)Width (mm)Depth (mm)
6 x 6 26541800 1800 
8 x 6   2654  2522 1800 
Review Summary - 4 out of 5 based on 1 rating.
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Ordering and details good but should need to understand installation requirements before order. Logistics was excellent. Individual parts are not as strong as expected but unit is strong and rigid when assembled. Like look and style. Double doors good for entry but were warped and tight fit, replaced by MGP. Very light and airy but could do with window opening to stop condensation rather than open doors especially when heating on (own). Installers excellent, courteous, friendly, hardworking. Customer services good re a few issues. Personally think a raised base to stop wood frame from touching concrete base is required.

December 17, 2019 | Anonymous

When will I receive my order?

Delivery Estimates are in working days, and the estimated delivery time for each product is shown above the ‘add to basket’ button on the product page.

Deliveries are mostly prearranged directly with yourself within a few days of placing an order; being booked in directly with a member of the delivery team/carriers. This can help to confirm a working delivery date which is best for you. When ordering, please provide an active mobile phone number to help delivery to be promptly booked in, and to ensure that there is no delay in receiving your order.

Please note, that some smaller items which can be posted or go via small carrier may be dispatched immediately, without contacting you first. If you have any doubts over your order status please contact us.

Will I receive a timeslot for my delivery?

As we use a wide range of carriers for delivery, you may not receive a time slot for your order. With most orders, you would be contacted first to arrange a delivery date, so you know in advance what day delivery has been booked in for. If you know you won’t be available for your pre-arranged day of delivery, please let us know in advance and we can pass this on to the carriers to investigate the possibility of your delivery being left with a neighbour or in a safe place.

Can I choose a specific delivery date within the estimated delivery dates?

Delivery Lead Times are Estimates; if you’re looking to receive a product by or on a certain date, please contact our customer service team before ordering for help and advice.

Is express delivery available?

There may be occasions where we can dispatch items sooner, should there be space available on a delivery run. If you are looking to receive a product sooner than the estimated delivery lead time, please contact us and we can see check delivery availability to see if this is possible.  

Some smaller products are applicable for next day delivery. This will be shown in the stock message on the product page, and at stage three of checkout.

Delivery Exemptions

A selection of the brands which we sell are unfortunately subject to certain geographical delivery exemptions. Please see our Delivery & Returns page for further details

Can I change my mind and return my order?

If you no longer require an item or if it just isn’t for you, you can return any product(s) as a change of mind within 14 days of receipt of the good(s). This is assuming that the good(s) are unused, in the original packaging, and in the original resaleable condition. Simply contact us at for the return address of any items you wish to return.

Please note that perishable goods (such as turf and bulk bags of soil), and made to measure items (Burbage Fencing/Gates/Railings etc) are excluded from return.


For further delivery and returns information, see here – Delivery and Returns