Detailed Specification

Please note:  all imperial measurements are approximate and Mercia garden buildings are made from metric measurements. We would recommend that the base is at least 50mm bigger in each direction.

Product Name: 6 x 6 (1.80m x 1.80m) Mercia Octagonal Greenhouse
Footprint (Front Width x Depth): 1800mm x 1800mm (5'10" x 5'10")
Height To Ridge: 2.67m (8'8")
Height To Eaves: 1.93m (6'4")
Walls: 12 Tongue and Groove
Framing 28mm x 28mm (11/10" x 11/10")
Door: Single
Door Opening (Height x Width): 1.72m x 0.59m (5'7" x 1'11")
Door Lock: Gate Latch
Roof Type: Pinnacle
Roof: Styrene Glazed
Roofing Felt: N/A
Floor: No Floor
Floor Joists: N/A
Floor Joist Direction: N/A
Window(s): Fully Glazed
Window / Wall Panels N/A
Window Glazing Material: Styrene
Windowless Option Available: N/A
Treatment Golden Brown Base Coat Dip Treatment
Portabases Available: No
Manufacturers Guarantee: 10 Year Anti-Rot Guarantee
FSC Certified: Yes
Free Delivery: Yes*
Assembly Available: Optional
EAN Number: 5029442091174
Recommended Treatment: Protek Range**
Manufacturer: Mercia


** We offer a selection of Protek paint within the options section of this product page. If selecting from this product page the treatment will be sent with your order. If ordering from the link the treatment will be sent separately.


The 6 x 6 Octagonal Greenhouse from Mercia provides a wonderful growing space in a charming and traditional style. The building comes with an internal potting shelf, to further expand your planting options. The walls of this greenhouse are constructed using premium horizontal interlocking tongue and groove boards with a shiplap profile. The shiplap profile includes a protective and aesthetically pleasing lip to create a strong, weather resistant panel.

Complete with thick wooden framing to support the cladding internally, this building offers a rigid and long-lasting structure. The glazing is made of UV protected styrene, which allows maximum light into the greenhouse while being safe and shatterproof. No floor is supplied with this greenhouse to ensure water can drain easily after you have watered your produce. All fixtures and fittings are supplied as standard, alongside our detailed instructions and our manufacturer’s recommendations, to ensure a simple and stress-free assembly process.

The greenhouse is made in the UK from ethically sourced FSC certified timber. All of our buildings come with an anti-rot guarantee, to ensure your garden building looks great and lasts the test of time. This greenhouse comes with a conditional 10-year anti-rot guarantee as well as a 12-month manufacturer’s warranty. Annual re-treatment is required to maintain your building and the Anti-rot guarantee – you will find all the care guidelines you need in the instructions provided. All our sheds are supplied pre-treated with a base coat to both sides in a golden brown water based industrial product (colour can vary from the picture shown) for protection during manufacture and transit. You must apply a water based top coat of your choice in order to receive the full 10-year anti-rot guarantee.

Additional Details about Your Order

If you think this shed would be perfect for you, take a look at our delivery information. If you would like any extra details, feel free to email us to discuss your order and our full range of product options, or better still, give us a call so we can find the perfect garden building to suit your needs.

Alternatively, why not visit us at our Brookfields Garden Centre showsite near Nottingham? One of our helpful advisors will be on hand to show you around or to help guide you through your order in person. Though if there is a particular garden building you would like to see, we recommend contacting us in advance to find out if we have it, or one similar, on site.

Many manufacturers recommend Protek wood treatment, available from elbec in a wide variety of different colours. This will protect the timber from weathering, making it last longer. The timber treatment will need to be repeated periodically in line with the manufacturer's instructions.



Key Features

  • Delivered flat-packed with instructions
  • Tongue and groove shiplap wall and door construction
  • Single door
  • No floor, which allows for water drainage
  • Shatterproof styrene glazed for safety
  • UV protected styrene used
  • Internal potting shelf
  • 10-year anti-rot warranty
  • FSC Certified
  • Traditional design complete with antique-style handles and hinges



Booking Delivery

You will be required to book your delivery date at the time of placing your order. Our 'Request a Delivery Date' service is available to the majority of areas and you'll find that the majority of the UK postcodes are FREE but some areas may incur a delivery surcharge and some postcodes are not covered at all. Select a 'requested delivery date' by entering your post code in the 'Request a delivery date' section above. You will also be notified at this time if your area incurs a surcharge or delivery is not covered in your area.

You'll be contacted on the morning of your delivery date either by text or email with a 2 hour delivery slot. You will also be contacted by the driver 30 minutes before the delivery location.

Please note: for Mercia Metal and Mercia Plastic Sheds ONLY - your order is delivered by a courier you will not be notified prior to the delivery. If you are not in on the day of the delivery you will be carded and asked to contact the courier to arrange a new mutual delivery date.

Delivery Leadtimes

The estimated delivery lead time for this product is identified on the product page above. Lead times are in working days (Monday - Friday) excludes Bank Holidays. These estimated lead times are provided by the manufacturer and are not guaranteed - due to fluctuation in demand - but are provided in good faith and are representative of delivery at that time. Some remote areas will take a little longer.

Upon Delivery

Your order is delivered either kerbside or driveway and will be delivered on a 17 ton lorry (the size of a Refuse Cart). Unfortunately due to health and safety and insurance liabilities the driver will not be able to take your goods around to the back of your property but may upon request place the product at the side of the house if there are no access or restriction issues. We would not risk damaging your property whilst delivering a product to an un-safe location. Unfortunately we will not be able to go through your property.

We would recommend against arranging for a third party to install the building before it's been delivered and checked that all parts are present, as we cannot be held liable for any third-party costs.

Installation Option

The leadtime for our installation option around 8 weeks.  With the installation option, some orders will have delivery and installation on different days, and some orders will have installation and delivery on the same day.  You will be advised by the manufacturer's installation team which category your order falls in to.

Within 3 working days of placing your order, you will be sent an installation questionnaire to complete and subsequently contacted with an installation date.

6 x 6 (1.80m x 1.80m) Mercia Octagonal Greenhouse

rrp £776.00
save £86.01
NEW - Guarantee - 10 year - gold

Product code - 20011004


Description Information

The 6 x 6 Mercia Octagonal Greenhouse benefits from a traditional and charming aesthetic whilst having plenty of internal space to grow fruit, vegetables and other plants all year round. Some key features of this building include:

  • Shiplap cladding giving a premium finish and a sturdy overall construction
  • Styrene glazing is used, a safer and shatterproof alternative to traditional glass
  • Traditional design complete with antique-style handles and hinges which help create a classic style
  • Internal potting shelf included to expand your planting options

View full specification Delivery

Your choices:

  • 6 x 6 (1.80m x 1.80m) Mercia Octagonal Greenhouse£689.99
        email me when in stock

        unavailableNot expected back in stock until November at the earliest