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 (1.87m x 1.87m) Mercia Octagonal Summerhouse
Footprint (Front Width x Depth): 1.87m x 1.87m (6'2" x 6'2")
Height To Ridge: 2.65m (8'8")
Height To Eaves: 1.93m (6'4")
Walls: 12mm Shiplap Tongue and Groove
Framing 28mm x 44mm
Door: Single
Door Opening (Height x Width): 1.78m x 1.19m (5'10" x 3'11")
Door Lock: Press Lock
Roof Type: Pinnacle
Roof: 12mm Tongue and Groove
Roofing Felt: Green Mineral
Floor: 12mm Tongue and Groove
Floor Joists: 0.027m x 0.045m (TBC)
Floor Joist Direction: Side to Side
Window(s): 4 x Fixed Windows
Window / Wall Panels Not Interchangeable
Window Glazing Material: Styrene
Windowless Option Available: N/A
Treatment Golden Brown Base Coat Dip Treatment
Portabases Available: N/A
Manufacturers Guarantee: 10 Year Anti-Rot Guarantee
FSC Certified: Yes
Free Delivery: Yes*
Assembly Available: Optional
EAN Number: 5029442080659
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 Summerhouse from Mercia is a stunning, traditional, eight-sided summerhouse that can be a beautiful focal point of any garden. The perfect garden retreat in the summer with its bright and airy interior, it is ideal for relaxing with a drink or two, reading a good book and soaking in spectacular sunny days. Plus, with its interior nicely sealed from the elements, it can be used for storage when the weather isn’t playing ball, keeping anything that needs sheltered storage safe and dry over the winter.

With ¾ length windows and a ¾ length door, the interior always remains a bright and inviting space when the sun is shining. Attractive, antique-style hinges and a matching door latch add to the Octagonal Summerhouse’s traditional appeal. The eight-sided walls and charming roof pinnacle combine to complete the summerhouse’s distinctive good looks.


Walls - The walls of the summerhouse are constructed from high quality, FSC certified timber. It uses specially designed tongue and groove cladding to give you a summerhouse that is not just durable but also a summerhouse that looks great in your garden. Also our planed tongue and groove shiplap cladding design closes the pores and together with its curved profile promotes the run off of water making the summerhouse more water resistant.

Door - The summerhouse door is half styrene glazed and as with the walls is constructed from high quality FSC certified tongue and groove cladding.

Roof and Floor - The roof of the summerhouse is constructed from high quality tongue and groove boards, providing excellent protection for the interior from the elements. The floor of the summerhouse is also constructed from high quality tongue and groove cladding, the summerhouse more water resistant and contribution to an impressive load capacity. The summerhouse floor also comes with high quality floor joists giving the summerhouse a solid, sturdy feel and greater load capacity.

Windows - All summerhouse windows are glazed with environmentally friendly styrene, which is a safer alternative to traditional glass. Styrene is shatterproof and therefore perfect for a busy garden.

Full assembly instructions are provided with the summerhouse and with all the fittings in the box as standard to complete construction of your building.

Additional Details about your Order

If you think that a 6 x 6 Mercia Octagonal Summerhouse 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 shed 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.

This building is supplied dip treated for protection during manufacture and transit. You must apply a wood treatment to the exterior. Many manufacturers recommend Protek wood treatment, available from elbec in many 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. You should always follow the manufacturer’s instructions and the instructions of your chosen treatment for best results and to validate your guarantee.

Key Features

  • Delivered flat-packed with instructions, fittings and green mineral roofing felt
  • 12mm tongue and groove walls and door construction
  • Single door is 3/4 glazed to let light flood into the summerhouse
  • Tongue and groove roof and floor construction
  • Four fixed styrene glazed windows
  • 10 Year Anti-Rot Warranty
  • FSC Certified timber
  • Antique style hinges and door latch



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 (1.87m x 1.87m) Mercia Octagonal Summerhouse

rrp £784.99
save £49.00

Product code - 20040143


Description Information

The 6 x 6 Mercia Octagonal Summerhouse is a stunning traditional summerhouse that can be a beautiful focal point of any garden. The key features include:

  • Stunning octagonal design that suits a traditional garden aesthetic
  • Bright and airy interior thanks to 4 windows and a glazed door
  • Tongue and groove roof, walls and floor for an all-round high build quality and excellent weather protection
  • Features a 10 year anti-rot guarantee so you know your summerhouse will last

View full specification Delivery

Choose additional options
Protek Wood Stain and Protector for Mercia Products
Protek Wood Stain and Protector 5 litres - Teak£20.00
Protek Wood Stain and Protector 5 litres - Chestnut£20.00
Protek Wood Stain and Protector 5 litres - Silver Fir£20.00
Protek Wood Stain and Protector 5 litres - Sky Grey Blue£20.00
Protek Wood Stain and Protector 5 litres - Gun Metal Grey£20.00
OUT OF STOCK - Protek Wood Stain and Protector 5 litres - Soft Sage£20.00
Protek Royal Exterior Superior Wood Finish for Mercia Products
Protek Royal Exterior Superior Wood Finish 5 litres - Sage Leaf£46.00
Protek Royal Exterior Superior Wood Finish 5 litres - Golden Oak£46.00
Protek Royal Exterior Superior Wood Finish 5 litres - Slate Grey£46.00
Protek Royal Exterior Superior Wood Finish 5 litres - Mendip Mist£46.00
Protek Royal Exterior Superior Wood Finish 5 litres - Silver Grey£46.00
Protek Royal Exterior Superior Wood Finish 5 litres - Eggshell Blue£46.00
Protek Royal Exterior Superior Wood Finish 5 litres - Anthracite Grey£46.00

Your choices:

  • 6 x 6 (1.87m x 1.87m) Mercia Octagonal Summerhouse£735.99
        email me when in stock

        unavailableNot expected back in stock until November at the earliest