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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£11,979.99

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. Door and Windows Entry to this garden office is gained via a double-glazed, UPVC door, which is secured by a 7-point multi-lock to keep expensive equipment safe. Three additional full-length, double-glazed windows ensure the interior benefits from an abundance of natural light. The top quarter of the side window opens for ventilation. The door 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 door with 7-point multi-lock 3 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 5013053183588

Why choose the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) in 2026?

Choosing the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) means opting for the expertise of Forest Xtend in the Bureautique & Papeterie category. Its price starting from £11,979.99 makes it a serious option on the market. Buyers interested in this brand also look at the Forest Xtend 4.0+ Fully Insulated SIP Garden Room Office with UPVC Double Doors 4.05m x 3.42m (97mm) to complete their comparison. On Compiral, all displayed prices are updated regularly and retailers are selected for their reliability and quality of customer service.

Technical analysis of the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm)

Among the main strengths of the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm), the most notable are its competitive pricing from £11,979.99 and the recognition of the Forest Xtend brand. Buyers who have already used this type of product in the Bureautique & Papeterie category generally highlight the effectiveness of the core functions and ease of maintenance. It is a product that suits both first-time buyers and those replacing existing equipment, with a short learning curve and stable performance over time.

What the tech specs reveal

The Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) spec sheet details the specifications that make a difference in daily use. For a savvy buyer, this data allows objective comparison with other products in the Bureautique & Papeterie category. Forest Xtend publishes precise specifications that make comparison easier and help you make an informed purchase decision. Consult the technical specifications table on this page for full details. 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 may also interest you for a direct comparison.

In practice day to day

In daily use, the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) is designed to fit easily into the regular habits of Bureautique & Papeterie users. Forest Xtend has optimised this model for regular use, with accessible features and simplified maintenance.

Market price ranges in 2026

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

Before buying the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm), remember to check the total price including delivery costs. On Compiral, sorting by total price lets you immediately identify the best offer among all listed retailers. Comparing return conditions and the warranty period offered by each retailer is also a good habit before finalising your order in the Bureautique & Papeterie category.

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

Is the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) in stock?

Stock availability for the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) is updated in real time on Compiral. Retailers showing "In stock" can usually deliver quickly, often within 2 to 5 working days. If the product is temporarily out of stock at one retailer, check the other offers in our table. Check back regularly as stock levels change frequently in the Bureautique & Papeterie category.

Where can I buy the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) at the best price?

To buy the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) at the best price, compare all available offers in our table at the top of this page. The 3 offers listed include delivery costs to give you the true total cost. Sort by ascending price and filter by free delivery to quickly identify the best deal among our verified partner retailers.

How does the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) compare to competitors in the Bureautique & Papeterie category?

In the Bureautique & Papeterie category, the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) suitable for beginners?

Yes, the Forest Xtend 3.0 Insulated Garden Office 2.98m x 2.9m (97mm) is generally appreciated by both beginners and regular users of the Bureautique & Papeterie category. It is quick to set up and Forest Xtend usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

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.

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