BillyOh
Guarantee
Protects the wood on your building against rot and decay.
This fantastic tall Tessa Reverse Apex Summerhouse has a stunning, modern design that is guaranteed to add style to your garden and enhance your outdoor experience. The breath-taking long windows, multi-access doors and strong Tongue and Groove construction make this summerhouse stand out from the crowd and an excellent addition for any garden.
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Protects the wood on your building against rot and decay.
Over 20 years of experience in design and production.
Crouch free design, giving you the ultimate space.
11mm Tongue and Groove roof, floor and green mineral felt roof covering.
Two sets of double doors not only means access into the building is accessible no matter the configuration of your garden but also invites a lovely breeze in on those hot summer days.
Built using Tongue & Groove panels, the Tessa has a secure and stable structure which is built to last. The interlocking Tongue and Grooves form strong panels, which create a strong structural strength.
The Tessa features a tall Apex roof offering plenty of headroom. With 5"7" eaves head height, the Harper ensures convenience and mobility whilst inside the summerhouse, making it feel fresh and airy.
The long windows wrap around two sides of the summerhouse, allowing plenty of natural light in and providing wonderful views of your garden.
Durable Single SAN glazing is included as standard. SAN is used for its UV properties, and the tougher finish avoids breakages.
No matter the shape of your garden, the movable panels allow you to place the doors and windows where you prefer them, leaving you in control.
Customer Images
The BillyOh guarantee covers this building against:
Please note: The guarantee does not cover timber splits or warping which may occur naturally over time.
Duration of Guarantee:
For more information about BillyOh Guarantee, please visit our terms and conditions
Spray Treated: Our sheds and summerhouses get a beautiful golden brown spray treatment before leaving the factory in order to preserve the quality of the wood up until the delivery. As this only lasts through the transit stage, we do advise treating the wood after installation to protect and preserve it, as well as annual maintenance.
Pressure Treated: For an extra level of protection, you can opt for a pressure treated building which is an effective way of keeping the wood long lasting. This is an extra step in the manufacturing process where the wood is treated in a pressurised tank. Chemical preservatives are forced deep into the wood’s fibres to resist rot, decay and termites. When you upgrade to Pressure Treatment, the guarantee is extended from 10 to 15 years.
With the Tessa an 11mm tongue and groove floor and roof is included.
Roof:
11mm: Our standard roof option, this interlocking roof provides a reliable covering for any building. The Tongue and Groove not only gives your building a stronger roof but also a premium look and feel.
Floor:
11mm: Our Standard flooring option which provides a durable, solid foundation and underfoot to the building. The 11mm option is ideal for less demanding and frequent usage, suitable for lighter intensity purposes like summer houses and other living spaces containing light furniture. The 11mm tongue and groove timber makes this a solid yet suitable, economical option.
All garden buildings should be assembled on a firm and level base. A base will ensure your building has a solid, long-lasting and well-drained foundation.
If you want to build your own base, from a sturdy material such as concrete or flagstones, you can find minimum dimensions for each size of this building in the tech specs. In order to protect your building from moisture, you should leave a 2ft gap around the exterior of your building, so remember to take this into consideration when laying any sort of base.
Our robust and simple to use EcoBase provides you with a firm, long-lasting foundation with suitable drainage for your garden building. It is quick and easy to install through the use of snap connectors that link the grids to each other.
We do not offer an installation service on any of our buildings, as they are designed to be easy and simple to assemble. Using the digital assembly instructions included in your order confirmation and with a team of at least 2 people, the handy pre assembled panels mean you will have your BillyOh building up in no time!
We do not offer an installation service on any of our buildings, our buildings are designed & made to be easy and simple to assemble. Using the assembly instruction included and with a team of just 2 people and a bit of DIY knowledge you can expect to have your BillyOh building up within a day, or as little as 3-4 hours with some of our smaller buildings.
Our sheds and summerhouse are delivered in easy to assemble panels. For your convenience the panels are no wider than 4ft so they can be easily maneuverable and fit through a standard doorway. Glazing and any additional wood is delivered in separate, clearly labeled packages.
Your order can be tracked through the account section on our website or by contacting us directly. You will be contacted after your order via your online account, email or text to provide updates on delivery dates.
We offer a pay by finance option on any purchase over the value of £560.
Our simple finance options allow you to spread the cost of your purchase over 24, 36 or 48 months.Read more about our Pay by Finance option here.
This stylish summer house is the perfect option for those who want to enjoy their outdoor space to the fullest. Wide double doors open up a world of possibilities from storage space to a garden office. With a range of sizes on offer, let your summer house ideas run wild or check out our blog for inspiration.
Durable tongue & groove panels are the standard flooring option with the ability to upgrade and pressure treat both your floor and standard roof option. This cladding style gives the Tessa a tight seal against water ingress in even harsh weather conditions. The Tessa also comes with a range of colour options available to purchase.
A tongue and groove apex summerhouse offers more than suitable drainage with its sloping roof panels. Long, styrene glazed windows also help you maximise on natural light whilst providing a safe and well-insulated solution.
Opting for pressure timber treatment will protect your building from moisture and offer an extra level of protection. Your Tessa summerhouse will be delivered with golden brown spray treatment otherwise and we advise on further treatment of the wood after installation.
Whereas, with optional pressure treatment you can get not only a high-quality decorative finish but a guarantee against rot with maximum weather protection. Then, simply erect your Tessa summerhouse on a concrete base or other raised, level base to protect your summerhouse against groundwater and rising damp.
The Tessa summer house naturally lends itself to a variety of uses. From everyday use office to summerhouse bars or simply somewhere to store extra garden furniture, we've seen our customers convert this summerhouse into it all!
The Tessa comes with various roofing options upon purchase, but premium green mineral roof felt is supplied as standard to offer a reliable covering. Plus, with a ridge height of 2.47m (8ft1), your Tessa summerhouse falls within the height allowed as 'permitted development' (without planning permission).
Double doors and single glazing windows help this garden building to maximise natural light and good airflow in the safest way possible.
We don't offer an installation service on our BillyOh buildings as they all come with comprehensive assembly instructions. You and a friend can have your Tessa up on a sturdy and level base in just a matter of hours.
Like the ridge, the eaves height of this summer house fall under the purview of 'permitted development'. The Tessa also comes with a 10-year guarantee protecting this building against rot, insect infestation, and decay.
With dependable quality from durable tongue & groove construction and high-quality European-sourced timber, you can further protect wood against rot by getting it pressure treated. Then we can increase our guarantee to 15 years.
Garden Buildings Direct, we stock a wide range of high-quality products. Manufactured in the UK, we can get your BillyOh building out to your delivery address in as little as 1 - 4 weeks. With fast and free delivery to most of mainland UK, simply enter your delivery postcode to get started on buying your outdoor building.
Otherwise, check out our FAQ for more information or get in touch with our friendly customer service team.
| Dimensions | 12 x 10 | 12 x 10 Pressure Treated | 16 x 10 | 20 x 10 | 16 x 10 Pressure Treated | 20 x 10 Pressure Treated |
|---|---|---|---|---|---|---|
| Width | 358.2cm | 358.2cm | 475.4cm | 592.6cm | 475.4cm | 592.6cm |
| Depth | 318.3cm | 318.3cm | 318.3cm | 318.3cm | 318.3cm | 318.3cm |
| Width (Internal) | 346cm | 346cm | 463.2cm | 580.4cm | 463.2cm | 580.4cm |
| Depth (Internal) | 293cm | 293cm | 293cm | 293cm | 293cm | 293cm |
| Ridge Height (Inc Floor) | 247cm | 247cm | 247cm | 247cm | 247cm | 247cm |
| Eaves Height (Inc Floor) | 173.2cm | 173.2cm | 173.2cm | 173.2cm | 173.2cm | 173.2cm |
| Ridge Height (Internal) | 242.4cm | 242.4cm | 242.4cm | 242.4cm | 242.4cm | 242.4cm |
| Eaves Height (Internal) | 175.4cm | 175.4cm | 175.4cm | 175.4cm | 175.4cm | 175.4cm |
| Door Opening Size (w x h) | 114.8cm x 163.9cm | 114.8cm x 163.9cm | 114.8cm x 163.9cm | 114.8cm x 163.9cm | 114.8cm x 163.9cm | 114.8cm x 163.9cm |
| Door Width | 58.3cm | 58.3cm | 58.3cm | 58.3cm | 58.3cm | 58.3cm |
| Door Height | 164.5cm | 164.5cm | 164.5cm | 164.5cm | 164.5cm | 164.5cm |
| Minimum Base Width | 358cm | 358cm | 475cm | 593cm | 475cm | 593cm |
| Minimum Base Length | 318cm | 318cm | 318cm | 318cm | 318cm | 318cm |
| Window Dimensions | 50.6cm x 125.3cm | 50.6cm x 125.3cm | 50.6cm x 125.3cm | 50.6cm x 125.3cm | 50.6cm x 125.3cm | 50.6cm x 125.3cm |
| Glazing Thickness | 0.12cm | 0.12cm | 0.12cm | 0.12cm | 0.12cm | 0.12cm |
| Frame Thickness (w x d) | 2.8cm x 2.8cm | 2.8cm x 2.8cm | 2.8cm x 2.8cm | 2.8cm x 2.8cm | 2.8cm x 2.8cm | 2.8cm x 2.8cm |
| Materials | 12 x 10 | 12 x 10 Pressure Treated | 16 x 10 | 20 x 10 | 16 x 10 Pressure Treated | 20 x 10 Pressure Treated |
| Glazing Material | Styrene | Styrene | Styrene | Styrene | Styrene | Styrene |
| Floor Material | 11mm Tongue and Groove | 11mm Pressure Treated Tongue and Groove | 11mm Tongue and Groove | 11mm Tongue and Groove | 11mm Pressure Treated Tongue and Groove | 11mm Pressure Treated Tongue and Groove |
| Roof Material | 11mm Tongue and Groove | 11mm Pressure Treated Tongue and Groove | 11mm Tongue and Groove | 11mm Tongue and Groove | 11mm Pressure Treated Tongue and Groove | 11mm Pressure Treated Tongue and Groove |
| Features | 12 x 10 | 12 x 10 Pressure Treated | 16 x 10 | 20 x 10 | 16 x 10 Pressure Treated | 20 x 10 Pressure Treated |
| Door Style | Double Doors | Double Doors | Double Doors | Double Doors | Double Doors | Double Doors |
| Windows | 6 Windows All Fixed | 6 Windows All Fixed | 8 Windows All Fixed | 10 Windows All Fixed | 8 Windows All Fixed | 10 Windows All Fixed |
| Factory Basecoat Treatment | Red Cedar Water Based Treatment for Transit | Pressure Treated | Red Cedar Water Based Treatment for Transit | Red Cedar Water Based Treatment for Transit | Pressure Treated | Pressure Treated |
| Material | Wood | Wood | Wood | Wood | Wood | Wood |
| Roof Style | Reverse Apex | Reverse Apex | Reverse Apex | Reverse Apex | Reverse Apex | Reverse Apex |
| Cladding Style | Tongue and Groove | Tongue and Groove | Tongue and Groove | Tongue and Groove | Tongue and Groove | Tongue and Groove |
We love to catch up with our customers to see how they’re getting on with their garden buildings. Check out how some of our customers have decorated their garden building and read what they had to say about it.
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