The Xtend 4.0 Insulated Garden Building from Forest would make a great addition to any garden. Create an extra room ideal for use as a home office, dining space, teenagers den, gym, hobby room or even just a space to unwind and relax after a long day. Made from 97mm thick modular structural insulated panels (SIP) with 15mm tongue and groove outer cladding and pre-cut MDF primed interior cladding this building is designed to be cool in the summer and warm in the winter. With a roof and floor that are insulated with 122mm SIP roof panels and 108mm SIP floor panels with wrapped damp proof bearers this building is designed to be energy efficient. The building is also supplied with double glazing though out, it has a single door with two fixed side panels to the front and one panel with 1/4 opening window on the right hand side wall, both the door and window are supplied with key locks for security. This building is designed to be low maintenance as the roof is made from a EPDM rubber membrane which will not crack, split or rot, this material is supplied with a 50 year guarantee and in one piece for easy installation. The rest of the item is supplied with 15 year manufacturer's structural guarantee. 

Manufactured in the UK from Kiln dried timber. The building is supplied as a self assembly kit, with instructions and fittings and with the ready made SIP panels and pre-cut cladding it offers a simple and straight forward installation process. However, if you would prefer to leave all the hard work to the experts at Forest, then opt for the home delivery and construction package.

• Walls - 75mm SIP boards between 2 OSB boards - overall thickness 97mm
• Outer cladding 15mm tongue and groove kiln dried timber with 28mm framing
• Inner cladding pre-cut MDF with vertical beading profile with 28mm framing
• Pre-primed walls and roof ready to paint with colour of your choosing
• Floor bearers pre-wrapped to protect from damp/rot 
• Roof SIP boards between 2 OSB boards - 122mm thickness
• Internal roof cladding MDF pre-primed with beading profile 
• Roof EPDM rubber membrane, supplied in one piece 
• Anthracite grey facias, door and windows
• Single door with two fixed side panels to the front
• 1 x side panel with 1/4 opening and lockable window on the right hand wall
• Internal door and window panes supplied in smooth white finish
• Glass 28mm double glazed, A rated energy efficient and toughened for safety 
• Overall energy rating of C (*based on lighting from 3 x 4 watt LED bulbs and heat from a high efficiency wall mounted heat pump, not supplied)
• Ready made SIP panels and pre-cut cladding for easy assembly
• Supplied untreated ready to paint with a suitable preservative paint
• 15 year structural manufacturers guarantee 
• Home assembly required  

Dimensions

The Xtend Garden Building is available in a range of different sizes and styles. Click below to view the full range.

Click Here To View The Xtend Range

Treatment and Maintenance

Forest Xtend buildings should be treated immediately following assembly with a high quality preservative and at least once a year after. All treatments must be suitable for kiln dried timber, the recommended treatments from Forest are Sikkens Cetol HLS Plus • Restol Wood Oil • Timmersol ETS Double Protectant • Osmo Country Colour • Osmo Natural Oil Woodstain. For the internal walls and roof these are pre-primed ready for you to apply a colour of your choice, standard emulsion paint is suitable for this. The internal floor is also supplied bare ready for you to lay carpet or laminate as required. 

Home Assembly Service

This item is supplied flat packed ready for DIY home installation however, if you would prefer a professional installation this service can be provided by the skilled Forest installation team at an agreed time which is convenient for you. Please note that this service is assembly only and does not include laying bases or disassembling existing buildings. Please ensure you have a suitable solid, level base in place before ordering this service.