Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm)

Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm)

Brand Forest Xtend

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£12,629.99

Free delivery

3 offers at 3 retailers

Listed since 18 May 2026

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Description

The Forest Xtend 3.0+ Insulated Garden Office is a modern garden room designed to work with your busy lifestyle. As well as the ideal home office, this versatile garden building also makes an excellent year-round family space or hobby room. Revolutionary Construction As an economic alternative to a home extension, this premium garden room is constructed from pre-cut, modular structural insulated panels (SIPs). Many new homes are now being built this way as SIPs offer ultimate insulation, are energy efficient and are robust. Unlike many other brands who offer just insulated walls, the Xtend range features SIP construction for the roof and floor too. The result is a fully insulated garden room from top-to-bottom. The incredible level of insulation also ensures that the home office will not be subject to damp, will be cool in summer, and will remain warm in winter - making it a pleasurable environment for working from home throughout the seasons. Each wall SIP consists of 97mm insulation sandwiched between two sheets of OSB (oriented strand board). The SIPs are completed and further insulated by both external and internal cladding. The internal cladding is MDF with a vertical beaded profile for a sophisticated appearance. It is primed ready for painting. The external cladding is high-quality, kiln-dried 15mm tongue and groove timber. As well as offering a stylish finish, tongue and groove is known for its weathertight structure. This combination of SIP, cladding and the cavities between gives the walls an incredible overall thickness of 177mm. Floor and Roof For increased insulation, the 108mm floor and 122mm pent-style roof are both built from SIPs too. The floor is left uncovered, so can be finished with carpet, laminate or other flooring according to personal taste. The interior of the roof is finished with pre-primed interior cladding ready for painting. Outside, the roof features a market-leading, black EPDM weatherproof roof covering, with an exceptional 50-year life expectancy. This rubber roof covering will not split or crack, does not support moss or algae growth, is UV-stabilised and is completely maintenance free. Anthracite grey facias complete the modern finish. Forest do not offer an electrical service. However, the 28mm wall battens and 45mm roof battens are designed to leave enough space to add electrical wiring and recess lights respectively. Electrical work should always be undertaken by a qualified electrician. Doors and Windows Entry to this garden office is gained via double-glazed, UPVC double doors, which are secured by a 7-point multi-lock to keep expensive equipment safe. Two additional full-length, double-glazed windows ensure the interior benefits from an abundance of natural light. The top half of both windows opens for ventilation. The doors and windows all have grain-effect grey outer and smooth white inner frames, making for an exceptionally attractive appearance. Options Available and Assembly This top-of-the-range insulated garden room is available in 3 sizes and with 3 different door/ window configurations. Fixtures, fittings, exterior facias and a step-by-step installation guide are all included for a simple assembly. Forest do offer a professional installation service carried out be expert fitters. Energy Efficiency and Care Instructions This garden home office has an energy efficiency rating of 78 (category C) and has the potential to reach 82 (category B), with the addition of a photovoltaic solar panel. The outdoor office is delivered untreated. As such, the exterior should be treated upon assembly and again each year. Forest Garden recommend that it is cared for with one of the following: Sikkens Cetol HLS Plus, Restol Wood Oil, Timmersol ETS Double Protectant, Osmo Country Colour or Osmo Natural Oil Wood Stain. The internal cladding comes with primer applied, so can be painted in any colour using standard interior emulsion paint. Delivery Delivery is free to most UK addresses and free pick-a-day delivery is available to many areas. Some remote postcodes may incur surcharges. Please see the delivery information for further details. 15-year structural guarantee UK-made from revolutionary Structural Insulated Panels (SIPs) 15mm tongue and groove external cladding and MDF interior walls 108mm SIP floor and 122mm SIP roof for top-to-bottom insulation EPDM weatherproof roof covering, with a 50-year life expectancy Double-glazed, UPVC double doors with 7-point multi-lock 2 full-length, double-glazed windows Available in 3 sizes and with 3 different door/ window configurations Energy efficiency rating 78 (C) - potential 82 (B) Free delivery to most UK addresses

Full specifications

Marque Forest Xtend
EAN 5013053183595

The Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) in its market context in 2026

When it comes to Bureautique & Papeterie, the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) by Forest Xtend is a reference that savvy buyers know well. Its value for money in 2026 deserves particular attention, especially given its availability across many retailers and the brand's strength in the market. Our comparison tool lets you view all available offers in real time, with or without free delivery, and click directly on the offer of your choice.

Forest Xtend: what this model offers

What buyers remember about the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm): consistent quality, intuitive use and a price that stays within market norms for this level of performance. The positioning of Forest Xtend on the Bureautique & Papeterie segment ensures access to spare parts and a structured after-sales service, which matters greatly in the long run. A solid choice in 2026, whether for a new purchase or to replace a failing device. Also discover the Forest Xtend 4.0+ Fully Insulated SIP Garden Room Office with UPVC Double Doors 4.05m x 3.42m (97mm) from the same brand for a second level of comparison.

The strengths that really make a difference

What truly differentiates the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) from other products in the Bureautique & Papeterie category comes down to a few concrete points: the build quality typical of Forest Xtend, its availability from many retailers and accessible after-sales support. These criteria, often decisive for buyers, favour this model over alternatives on the market in 2026. Compare with the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) if you wish to explore other models from the brand.

What you need to know before buying

Before buying the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm), check the following points: stock availability at your chosen retailer, the returns policy, warranty period and delivery charges. These details are accessible from our offers table at the top of this page. Forest Xtend generally offers a well-structured after-sales network for the Bureautique & Papeterie category.

Market price ranges in 2026

RangeIndicative price
Entry-levelUnder 3790 £
Mid-range3790 £ to 8840 £
High-endOver 8840 £

Comparing prices before buying the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) can save you between £10 and £40 depending on the retailer and the time of year. Use Compiral to never overpay for your online purchases. The 3 offers listed on this page all come from verified retailers with sales conditions compliant with consumer protection law.

Frequently asked questions about Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm)

Is there a refurbished version of the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm)?

Refurbished versions of the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) drop during the year?

Prices for the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Bureautique & Papeterie category.

Is delivery free for the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) at all retailers?

Free delivery is not guaranteed for the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.

How do I return the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) if I am not satisfied?

You have a 14-day right of withdrawal for any online purchase, applicable to the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.

Is the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) worth its price in 2026?

In 2026, the Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm) is listed from £12,629.99 at our partner retailers. This price is consistent with the positioning of Forest Xtend in the Bureautique & Papeterie category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.

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