12′ x 8′ Forest Beckwood 25yr Guarantee Double Door Apex Summer House (3.6m x 2.61m)
Overview
This 12′ x 8′ Forest Beckwood summerhouse is a space to relax, entertain or work from home. Expertly crafted with a quintessentially English charm, built from FSC certified timber and backed by Forest’s 25-year anti-rot guarantee, it arrives unpainted, ready to finish in the colour of your choice.
Key Features
- 12′ x 8′ footprint (3.6m x 2.61m)
- Fully modular design for easier assembly and a choice of door and window placements
- 12mm shiplap cladding on a 28mm x 28mm frame
- Double doors with 6 large windows for plenty of natural light
- 25-year anti-rot guarantee, the longest on the market
- FSC certified, pressure treated timber, never needing re-treating
Roof Types
This model has a traditional apex roof, giving a high roofline and generous headroom, with diamond shaped finials for a classic finish. The roof deck has an 8mm OSB deck with a green mineral felt cover for complete weatherproofing, shared across the whole Beckwood range.
Dimensions
- External size: 12′ x 8′ (3.6m x 2.61m)
- Please double check measurements against your plot, including any access route, before ordering
Construction
The walls are built from 12mm shiplap tongue and groove cladding on a 28mm x 28mm frame, with a scalloped profile and smooth planed finish. Delivered in interchangeable modular panels, it goes together more easily and results in a stronger structure. The floor is a 12mm tongue and groove floor fitted with pressure treated bearers, promoting airflow underneath and helping prevent damp and rot.
Treatment & Guarantee
The timber is pressure treated and FSC certified, sourced from sustainably managed forests, and backed by Forest’s 25-year anti-rot guarantee, so the wood never needs re-treating. The building is supplied unpainted, so you can finish it in whichever colour suits your garden.
Doors & Windows / Security
Access is via double doors fitted with sturdy door knobs, a drop latch, cabin hooks and turn buttons. The doors and 6 large windows are glazed with lightweight, shatterproof acrylic, far tougher than standard glass and safer for a busy family garden, letting in plenty of natural light while keeping the building secure.
Assembly Information
This summerhouse is delivered flat packed with all fixings and clear instructions, via Forest’s White Glove Delivery Service, which brings it straight into your garden with the packaging removed. A professional installation service is also available as an upgrade.
Delivery Information
Free delivery is included to most UK mainland postcodes via Forest’s White Glove Service. Some remote postcodes may carry a small surcharge, shown at checkout.
Optional Upgrades
- Professional installation service
- Pressure treated wooden base for a solid, level foundation
- Upgrade to two opening windows for extra ventilation, where one is fitted as standard
If you are preparing your own base, a firm, level surface such as paving slabs or concrete is recommended.
Frequently Asked Questions
Is this summerhouse painted?
No, it is supplied unpainted so you can treat it in a colour of your choice.
Does it come with a base?
Not as standard, but a pressure treated wooden base is available as an optional upgrade.
Is delivery free?
Yes, to most UK mainland addresses via Forest’s White Glove Delivery Service.

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