Detailed Specification

Please note: all imperial measurements are approximate and Mercia garden buildings are made from metric measurements.

Product Name: 10 x 8 (2.94m x 2.42m) Mercia Helios Summerhouse
Footprint (Front Width x Depth): 2.94m x 2.42m (9'8' x 7'10') [Excluding Overhang]
Height To Ridge: 2.13m (6'11')
Height To Eaves: 1.78m (5'10')
Walls: 12mm Shiplap Tongue and Groove
Door: Double
Door(s) Height x Width: 1.72m x 1.20m (5'8' x 3'11')
Lock: 3 Level Lock
Roof: 12mm Tongue and Groove
Roofing Felt: Green Mineral
Floor: 12mm Tongue and Groove
Bearers: 0.027m x 0.045m (0'1' x 0'2')
Bearers Direction: Front to Back
Window(s): 4 x Styrene Clear Glazed
Framing 28mm x 44mm (0'1' x 0'2')
Portabases Available: Yes
Eco Bases Available: N/A
Number Required: N/A
Manufacturers Guarantee: 10 Year Anti-Rot Warranty
FSC Certified: Yes
Free Delivery: Yes
Assembly Available: Yes
EAN Number: 5029442073866
Manufacturer: Mercia


The 10 x 8 Mercia Helios Summerhouse is perfect for those who want a summerhouse with a stunning and contemporary design. The curved roof aids the run-off of rainwater, but also adds to the elegance of the summerhouse. With the doors flung open it's perfect for relaxing during the summer months; with the summerhouse doors secured it's perfect for storage throughout the British winter. This makes this summerhouse a welcome addition to your garden all year round.



Many fantastic features are included in the design of this high-quality summerhouse from Mercia. For example, all the windows of the Helios are glazed with styrene, an environmentally-friendly alternative to traditional glass that is virtually impossible to shatter and safe for family gardens. Their presence in the Helios allow for an incredible amount of sunlight to enter and make the interior feel spacious and open. They also allow any onlookers to enjoy the natural charm of top quality tongue and groove timber visible through the interior. 

The walls of this summerhouse are constructed from a high-quality, FSC certified timber. These make use of a tongue and groove construction technique, with horizontally placed boards that interlock tightly to form a barrier to the elements, and a shiplap profile. This 12mm cladding is not just durable, but also looks great in your garden. Anyone concerned by water damage will appreciate the improved sheltering these provide for stored items. 

A similar tongue and groove approach is used for the timber that makes up the roof and floor of your summerhouse. Mineral roofing felt added to the roof provides an additional layer of resistance against water. The summerhouse floor also comes with high quality floor joists giving the summerhouse a solid sturdy feel, and greater load capacity so that you won't need to worry about placing furniture inside your summerhouse.


Additional Information

Please note that the Mercia Helios Summerhouse is pre-treated with a water based timber treatment for protection during transit. In order to receive the full 10 year anti-rot guarantee on your summerhouse, it is necessary that you treat it with a high quality, water-based, timber preservative prior to or shortly after construction. This will protect the timber from weathering on your summerhouse and will need to be repeated accordingly in relation to manufacturer's instructions.

Full assembly instructions are provided with the summerhouse, with all the fittings and fixtures needed to put the summerhouse together at home. At elbec, we recommend enlisting the help of a friend when assembling any garden building, and predict that this summerhouse will take one or two days to complete depending on your previous experience of similar DIY projects.

The Mercia Helios Summerhouse also comes in two other sizes:

8 x 8 Helios Summerhouse: Please click here

10 x 10 Helios Summerhouse: Please click here


Key Features

  • Free UK mainland delivery

  • Pick your date of delivery when ordering

  • 12mm shiplap cladding used for walls, roof, and door, using tongue and groove construction

  • Stylish curved roof to encourage run-off of rainwater

  • Semi-glazed double door allow sunlight to flood into the interior

  • Clear styrene used in all glazing, a shatterproof alternative to glass

  • 10-year anti-rot guarantee from the manufacturer

  • FSC certified timber with dip-treatment for initial protection from the elements

  • Mineral roofing felt included


ALL DELIVERIES ARE DELIVERED TO KERBSIDE OR DRIVEWAY. All of our Mercia products are delivered flat packed other than fence panels (which are delivered fully constructed), direct to your home, and are supplied with a set of instructions to support assembly.

Booking Delivery

You will be required to book your delivery date at the time of placing your order (except for Metal Shed). 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 postcode 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.

Prior to Delivery

On the morning of your delivery date, you'll be sent an update by text with an estimated 2-hour delivery slot (this update can only be provided where a mobile number has been supplied on the billing address section at the time of checkout) together with a link to the manufacturer delivery portal where you'll be able to track your order.

Please note: Mercia Metal 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. The estimated delivery lead time for Mercia's Metal sheds is identified on the product for the metal shed. Lead times are on working days (Monday - Friday) excludes Bank Holidays. These estimated lead times are provided by the manufacturer. Some remote areas will take a little longer.

Upon Delivery

Your order is delivered either kerbside or driveway and will be delivered on either a 3.5T, 7.5T or 18T Lorry. 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 unsafe 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.


Orders with Assembly 

The lead time for our installation option is around 12 weeks from the date of order. With the installation option, the majority of orders will have their delivery and installation on separate days; there will be a small number of orders which will have delivery and installation on the same day. You will be advised by the manufacturer's installation team which category your order falls into.

Depending on the installation option for your order, you will be contacted within the delivery timescale and given a date for either delivery/assembly on the same date or a separate date for delivery and assembly.

Customer Reviews

Write A Review
"Great Service: We just wanted to say what great service we received from you. We have purchased a pent shed and summere house...... our garden is looking great!
Star Rating 5
"FANTASTIC!: Fantastic! Great to find a company that have the communication skills and the efficiency that gives customer satisfaction. You definately do what is says on your website. My summer house was delivered exactly when you said it would and the instructions for assembly were easy to follow, all parts were there and we are already enjoying our new addition after half a day to build. The driver was friendly and telephoned half an hour before delivery as promised. I have already recommended your company to two other interested parties. Many thanks for a great product and a fantastic service. Mrs Harris - Shrewsbury - Shropshire"
Star Rating 5
"EXCELLENT SERVICE: Thank you for your quick response, but I am delighted to say you do not need to chase the order as it arrived tonight. Many thanks for your offer to help, and also for the quick delivery. I can't wait to have it put together now! Regards Mr C Lobb"
Star Rating 5

10 x 8 (2.94m x 2.42m) Mercia Helios Summerhouse

NEW - Guarantee - 10 year - gold

Product code - 20040113

Description Information

This 10 x 8 Mercia Helios Summerhouse has an elegant and contemporary design that will brighten up any garden. Some key features of this summerhouse include:

  • Tongue and groove design used throughout for an attractive and durable cladding 
  • Curved pent roof will catch the eye of any visitors and offers plenty of headroom for those using the summerhouse
  • Wide, glazed double doors and four tall windows - all glazed with shatterproof styrene - provide a luxurious and spacious experience inside
  • 10-year anti-rot guarantee gives owners the confidence in using their summerhouse for many years to come

View full specification Delivery

Usually delivered: Use Pick A Day delivery below for your earliest delivery date to your Post Code.

Note: Currently not available for delivery to Offshore Post Codes.

excludes installation option
Choose additional options
Protek Wood Stain and Protector for Mercia Products
Protek Wood Stain and Protector 5 litres - Gun Metal Grey£29.99
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Protek Wood Stain and Protector 5 litres - Silver Fir£29.99
Protek Wood Stain and Protector 5 litres - Teak£29.99
Protek Wood Stain and Protector 5 litres - Sky Grey Blue£29.99
Protek Royal Exterior Superior Wood Finish for Mercia Products
Protek Royal Exterior Superior Wood Finish 5 litres - Golden Oak£59.99
Protek Royal Exterior Superior Wood Finish 5 litres - Sage Leaf£59.99
Protek Royal Exterior Superior Wood Finish 5 litres - Silver Grey£59.99
Protek Royal Exterior Superior Wood Finish 5 litres - Clear£59.99
Protek Royal Exterior Superior Wood Finish 5 litres - Eggshell Blue£59.99
Protek Royal Exterior Superior Wood Finish 5 litres - Slate Grey£59.99
Protek Royal Exterior Superior Wood Finish 5 litres - Mendip Mist£59.99

Your choices:

  • 10ft x 8ft (approx) Front width x depth - Mercia Helios Summerhouse£1,599.99