Meet the Xtend 2.5 a purpose built small insulated garden office from Forest Gardens premium collection. Designed to meet the needs of the growing number of people working from home, the Xtend Garden Office allows you to create a healthy separation of your work and home life all in your own garden. This compact yet versatile small garden room offers 50sqft of space ideal as a garden gym, hobby den or quiet retreat. A Small Insulated Garden Room with Cutting Edge Construction With over 50 years of expert experience as one of the UKs largest manufacturers of timber garden buildings, it is no surprise that Forest Garden are leading the way in innovative construction. The Xtend range is designed with Structural Insulated Panels SIPs at its core. SIPS are a high performance, energy efficient building material used in some of the best new homes being built in the 21st century. By using this revolutionary material when building the Xtend garden rooms, Forest have ensured that youll have a workplace that is damp free, cool in summer, and warm in winter. Plus, unlike most other brands of garden building that only insulate their walls, the Xtend Insulated Garden Office utilises SIPS for the walls, roof and floor for an energy efficient, full insulated build that you will enjoy throughout the year. The Xtend 2.5 is the smallest garden room in our range. For larger garden rooms, see our Xtend 3.0 and Xtend 4.0 buildings. The Walls The wall SIPs each consist of 75mm of insulation sandwiched between two sheets of oriented strand board OSB for a remarkable 97mm thickness. These are preassembled and already cut to size for easy construction. External and internal cladding is then added to each wall SIP. The external cladding is 15mm premium tongue and groove made from kiln dried timber and supported by 28x28mm framing. The interlocking structure of tongue and groove offers superior weather protection as well as a modern finish. The internal cladding is pre cut MDF with an attractive vertical beaded profile. Conveniently already coated in primer, once assembled, the interior walls are ready for you to paint in your choice of colour. Standard interior emulsion paint is all you need. With the impressive combination of SIPs, exterior cladding, interior cladding and the cavities in between, the resulting thickness is a mighty 177mm. Floor and Roof Surpassing most brands who will only insulate the walls, Forest have used the innovative SIPS for the walls, floor and roof. The floor SIP has a total thickness of 108mm so not only is it another source of insulation, but it is strong enough to withstand years of footfall. Plus, the floor is supported by wrapped floor bearers to prevent rot and damp rising from the ground. Inside, the floor is left uncovered for you to add your choice of flooring, such as carpet or laminate. The roof SIP has even thicker insulation and is also sandwiched between two boards of OSB for a total 122mm thickness. This offers robust protection against the elements. Plus, the roof features the same primed MDF interior cladding as the walls for an attractive finish. The roof surface is finished with EPDM which is a rubber membrane roof covering far superior to felt. With an incredible 50 year guarantee, the EPDM will not crack, split or rot and is resistant to moss or algae growth. It is UV stable so wont fade or deteriorate after long exposure to sunlight. The maintenance free membrane is applied as one sheet so there are no joins to worry about. The roof is then finished off with modern anthracite grey fascia to complete the handsome appearance of this modern garden room. Small Garden Room uPVC Double Glazed Door and Windows Offering ample light, the Xtend 2.5 features a fully glazed entrance door with a full length adjacent windowpane. To the side of the office is a further full length pane. The side pane of the standard 2.5 Xtend model comes with a 14 height opening window. You can choose to upgrade to the 2.5 Xtend model for a 12 height opening window in the side pane. Make your choice via the drop down menu. The door and windows all boast a uPVC 5 chamber specification. Modern anthracite grey with a grained finish on the exterior, the door and window frames are smooth white on the interior to suit your chosen decor. All glazing is A rated, double glazing for improved heat and noise insulation. The glass is toughened for safety. A discrete window vent supports the pleasant working environment. The door frame is reinforced. Security is provided by a key operated 7 point multi lock with a Ultion three star security barrel. The opening window is also lockable with its own key. Also take a look at the Xtend 3.0 and Xtend 4.0 for more space with different window and door configurations. Energy Efficiency Because the SIPs are pre insulated, you can rest assured that your new outdoor office will be warm in winter and cool in summer. The A rated, double glazed windows support this insulation. In fact, all the insulated garden rooms in the Xtend range are certified as having an energy efficiency of category C with the potential to increase to B with the addition of a photovoltaic solar panel. With the combination of the SIPs, external cladding, internal cladding and cavities, the total thickness of the wall panels is a mighty 177mm. This far exceeds standard log cabins and makes the Xtend 2.5 ideal for comfortable year round use as a small garden office or family space. Installation and Maintenance The ready made SIPs and pre cut cladding are designed to make building the garden home office as easy as possible. However, if you are not confident with DIY or simply limited by time, Forest Garden offer an installation service. Their dedicated fitters will provide a quick, professional construction using their expert knowledge and skills. The timber is supplied untreated and will need to be treated upon assembly and annually thereafter. Forest Garden recommend the following products for use with their kiln dried timber Sikkens Cetol HLS Plus, Restol Wood Oil, Timmersol ETS Double Protectant, Osmo Country Colour and Osmo Natural Oil Woodstain. *Please note that the garden office does not come painted grey. Image is for illustrative purposes only.* The Xtend 2.5 small garden office comes with a 15 year structural guarantee from Forest Garden. Adding Electrics Though we do not provide an electrician service, the battens on the interior cladding are designed to leave ample room for wiring andor recessed ceiling lights should you wish to add mains electrics later. We do offer a range of solar power options for powering and lighting your garden office. Delivery Delivery of our small insulated garden office is free to most UK postcodes. Some remote postcodes may incur a surcharge. Details of this will be available via the postcode checker and at checkout. Many of Forest Gardens garden buildings are available with a pick a day delivery option allowing you to choose the most convenient delivery date. If this is available for this product, you will see the Pick a Day icon at the top of the page. If you have any further questions, our UK based, knowledgeable customer service team will be happy to help you. You can call our team directly or use the live chat option at the bottom of the screen. Why Buy a Small Insulated Garden Room If youre short on space but still need somewhere to work, think, or unwind, a small insulated garden room like the Xtend 2.5 is perfect. As well as being fully insulated, it has uPVC double glazed windows and doors, and designed with year round use in mind so its just as suitable for Zoom meetings in January as it is for creative afternoons in July. The compact footprint makes it one of the best small insulated garden rooms on the market for homes with tighter outdoor areas. Quick Overview of Our Xtend 2.5 Small Garden Office Small garden office with 50 square feet of multi purpose living space Built with cutting edge Structural Insulated Panels for year round comfort and insulation Internal cladding with vertical beaded profile primed for you to paint your choice of colour External cladding made with 15mm tongue and groove, kiln dried timber Wall SIPS, plus internal cladding, plus external cladding plus cavity space creates a mighty 177mm thickness Roof SIPs are 122mm thick in total Floor SIP is 108mm thick and left uncovered for you to complete with your own carpet, laminate, etc EDPM rubber, maintenance free, 50yr life expectancy roof covering Anthracite grey uPVC fascia Fully glazed entrance door with a full length adjacent windowpane Further full length pane to the side with a quarter height opening window 2.5 model or upgrade to a half height opening window 2.5 model select your preference in the option drop down Door is uPVC reinforced 5 chamber with 7 point locking mechanism Windows are uPVC 5 chamber Opening windows are key lock operated Double glazing throughout A rated Energy efficiency rated C Installation service available Other sizes available Free delivery to most UK postcodes Explore our full range of garden offices to find the perfect fit for your garden. Reasons to buy a Small Insulated Garden Office from Buy Sheds Direct PARTNERSHIPS WITH TOP BRITISH BRANDS Exclusive products manufactured by reputable UK suppliers REGULAR PROMOTIONS AND BUNDLE DEALS Save more with seasonal offers and package discounts PICK A DAY DELIVERY ON MANY ITEMS Flexible delivery slots to suit your schedule DESIGN The future of small insulated garden offices, the Xtend 2.5 uses cutting edge Structural Insulated Panels SIPs, resulting in the best small garden room for true year round comfort CONSTRUCTION Fully insulated 97mm thick SIP walls; handsome 15mm tongue and groove exterior cladding; and pre primed interior cladding for an impressive 177mm thickness overall ROOF AND FLOOR 122mm SIP roof completed with interior cladding and fully insulated 108mm SIP floor on protected bearers images shown with laminate flooring added GLAZING A rated uPVC double glazing throughout INCLUDED Maintenance free EPDM roof covering with 50yr life expectancy GUARANTEE A full 15 year structural guarantee backs this small garden room, offering peace of mind year round...Read More...»»
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Compare prices for Forest Xtend 2.5 Small Garden Office: Small Insulated Garden Room with uPVC - 2.54m x 2.9m (97mm) - Buy Forest Xtend 2.5 Small Garden Office: Small Insulated Garden Room with uPVC - 2.54m x 2.9m (97mm) prices checked on October 14, 2025