Mercia Traditional Tall Wall Greenhouse

Mercia Traditional Tall Wall Greenhouse

Product code
Mercia Traditional Tall Wall Greenhouse is rated 3.9 out of 5 by 7.
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  • Overview
  • Reviews (7)
  • Delivery
  • Returns

This Mercia 6 x 3ft Wooden Victorian Growhouse is the perfect addition to the back yard of an avid gardening enthusiast who doesn’t have much space to spare.

Styrene glazed windows are fitted to allow natural light into the building, encouraging the growth of plants and vegetables. The panels used in this wooden greenhouse are made using 12mm shiplap cladding, the interlocking nature of this construction creates a solid panel that prevents weather getting in and damaging plants and tools. Because the styrene glazed windows are UV treated, there is no need to worry about the panels cracking or discolouring over time; the UV treatment also helps to protect plants inside from harmful rays.

Opening windows feature on top of this growhouse so that gardeners can regulate the temperature inside to suit the produce they are growing.

A classic pent roofline helps with water drainage, an essential feature that prolongs the life of the timber. A savvy gardener can also use this roofline to harvest the rainwater for use on their produce.

Although a coat of treatment is applied in the factory, it is recommended that a second coat is applied upon delivery. A 10-year anti rot guarantee is supplied as standard.

Features and Benefits

  • Durable – This sturdy and strong garden building is constructed from robust timber and joints giving you a long-lasting and resilient structure.
  • Decorate yourself – Paint, stain or leave it natural, this greenhouse gives you the chance to customise it to how your kids want it.
  • Self-assembly – This is a two-person job but can be completed without any professional help needed. All assembly instructions are included.


  • 12mm Interlocking Cladding
  • Styrene Glazed Windows
  • Opening Double Doors
  • Shelving
  • Self-assembly required


Traditional Tall Wall Greenhouse



Base Width




Base Depth


Ridge Height


Eave Height


Internal Width


Internal Depth


Internal Ridge Height


Internal Eave Height



12mm Shiplap

Floor & Roof

Styrene Roof

Door opening width(All dimensions in mm


Door opening height (All dimensions in mm)


Lock type

Tower Bolt


Water Based Dip Treatment


10 Year Anti Rot - Requires annual treatment with a high-quality preservative that weatherproofs and protects against rot

View Swift Foundations range of shed bases and roofing kits HERE

Reviews (7)
Rated 4 out of 5 by from Good value wooden greenhouse The greenhouse seems to be good quality for the price, it was delivered quickly and although one part was damaged, this was quickly resolved with a replacement part being couriered out on Easter Monday! The only complaint I have is that the screw pack with the product didn't seem to bear any relation to the instructions, with even then longest screws not being suitable to construct the greenhouse. We ended up buying a large pack of long 70mm decking screws, which was used for majority of the build. Pre-drilling the holes at the factory would be useful, especially on aspects such as the doors, which are particularly tricky to line up correctly. It is spacious and quite sturdy, and will hopefully help me to grow lots of tomatoes over the coming years.
Date published: 2019-05-09
Rated 1 out of 5 by from Very poor quality I purchased this as I have downsized from having an allotment. Expecting something of at least reasonable quality but it’s not even that. The timber is rough and badly put together with staples. The joints don’t meet and one of the roof panels was broken when it arrived. I ordered a replacement which has come today to find this is also broken and on undoing the bubble wrap the whole roof section fell apart onto the floor as the staples holding it together were all loose. The hinges are cast and on screwing one into the door it broke in half. This thing isn5 fit for purpose and I don’t think I will ge5 the winter out of it. Also the window roof panel doesn5 come with a stay so there’s nothing to keep it down flat when the wind gets up. I’ve fitted my own but at the price you shouldn’t have to. It’s not worth the money I paid. I wouldn’t have paid £10 for it given the poor workmanship. Please don’t buy. I don’t do revues normally but the product is so poor I wanted to alert others.
Date published: 2019-04-16
Rated 5 out of 5 by from Great little greenhouse I wanted a small greenhouse with a solid back and this is just the job. Assembly was easy and fairly logical, the bag of screws supplied seemed too big for the job but better that than not having enough! Managed to get 2 coats of paint on it and all that is left to do it peel off the window protection. Also worth noting that the logistics company who managed the delivery were really good, a great example of oversized home delivery. My Dad has seen photos and now wants one which I take as positive too!
Date published: 2020-05-26
Rated 4 out of 5 by from Excellent. Only small grips. Good, sturdy, easy to build. Needs some 75mm screws. Maximum size which comes is 60mm. Saying they give you enough other sizes in the bag to start a hardware store after building it.
Date published: 2020-06-17
Rated 4 out of 5 by from Good value for money Greenhouse went together easy, had to buy lock for the doors, instructions easy to follow. Pleased with the outcome. Good size for a small/med garden or the new gardener
Date published: 2020-06-22
Rated 5 out of 5 by from Excellent Service, I would recommend Fantastic products, I'd not heard of Robert Dyas before I bought my shed. Hopefully they expand to the north of England in the future
Date published: 2020-06-18
Rated 4 out of 5 by from Great Lockdown Greenhouse Bought - assembled - painted - my lockdown greenhouse!
Date published: 2020-06-17
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  • clientName_robertdyas
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Vendor Direct Products:

This product is delivered for FREE by our approved supplier on a Standard Delivery Service.

Please be aware that we currently cannot arrange for delivery of this product to the following postcodes: AB, FK, HS, IV, KA, KW, PA, PH, ZE, LL58-LL78, IM, TR, BT, PO30-41.

You will be contacted by our approved supplier MERCIA GARDEN PRODUCTS (DS) within the next 14 days to arrange a suitable day for delivery. Dispatched by MERCIA GARDEN PRODUCTS (DS) .



In the UK you have a legal right, under the Consumer Contracts Regulations June 2014, to cancel your order within fourteen (14) days following your receipt of the goods. Refunds for orders cancelled under the provisions of the Consumer Contracts Regulations will be processed in accordance with your legal rights.

You may not cancel orders for the following types of products:

  • Electrical/Technical products which have been unsealed
  • Customised or bespoke Products
  • Anything of a nature that for hygiene or associated health and safety - this includes the Outdoor Spas, Mattresses and Divan Sets
  • Fresh food

Under the Consumer Contracts Regulations June 2014 you have a duty to take reasonable care of Products whilst they are in your possession. You will receive a full refund of the purchase price of the Products.

This is not intended to be a full statement of your rights under the Consumer Contracts Regulations. Full details of your rights are available from your Local Authority’s Trading Standards Office.

How To Return A Product

If you wish to return your item to Robert Dyas, you can do so by the following method:

1. Request a Collection via Robert Dyas Customer Services

Contact our Customer Services team on 0333 103 6677 (Monday- Friday 08:00 - 17:00, Saturday 09:00 - 17:00, Sunday - Closed - call charges may vary by network) or via email to: [email protected] who will be able to arrange a collection for your item with the supplier. Please ensure that you provide your order number when contacting customer services.

If you are returning the item under your 14 day right to cancel, then a collection charge will be applied:

  • Products < 20kg: £7.50
  • Products > 20kg: £30

If you are not at home when we try to collect we reserve the right to deduct from your refund or charge your credit card the direct costs to us of the failed return in accordance with the Consumer Protection (Distance Selling) Regulations 2000.