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Description
Forest Garden Xtend Premium 4 x 3.42m Insulated Garden Office with 1/2 WindowForest Garden Xtend 4. 0M Premium Achieve your work life balance with the Xtend range of garden buildings from Forest Garden. These new buildings have everything you could wish for in a home office contemporary looks, real energy efficiency, ease of construction and keen pricing. Space is at a premium in most homes and extensions are costly. An Xtend garden building is constructed from high quality, energy efcient materials and is underwritten with a
Forest Garden Xtend 4.0M Premium
Achieve your work/life balance with the Xtend range of garden buildings from Forest Garden. These new buildings have everything you could wish for in a home office - contemporary looks, real energy efficiency, ease of construction and keen pricing.
Space is at a premium in most homes and extensions are costly. An Xtend garden building is constructed from high quality, energy efficient materials and is underwritten with a 15 year structural guarantee
Xtend is a clever choice for your garden building as it comes delivered in pre-cut modular SIP panels ready for assembly. Some of the best designed new homes are now made this way, so why not your new garden building? A step-by-step guide means the build is incredibly straightforward.
Keeping you warm in winter and cool in summer, Xtend delivers real energy efficiency. Double glazed windows, highly efficient insulated walls, roof and ?oor combine to drive down energy costs. It’s a fact that Xtend garden buildings can be as energy efficient as a new-build home – with an EPC energy rating of B.
Features:
STRUCTURAL INSULATED PANELS (SIPS)
- The core structure of an Xtend building is made from SIPs panels - high performance material for building construction. The 21st century way to build
- 9 7mm thick insulated walls consist of 75mm of polystyrene insulation sandwiched by two sheets of oriented strand board (OSB)
- Gives structure and insulation in one pre-assembled and cut-to-size panel
- Total wall thickness including SIPS panels, internal and external cladding and cavities is 177mm
- Roof is 11mm OSB + 100mm insulation + 11mm OSB = 122mm total
External Cladding
- Pre-cut external timber cladding panels for quick and easy assembly
- No measuring and cutting every single batten and board to size before mounting
- Cladding panels are simply positioned on the building and screwed into place
- Panels are made with 15mm thick premium interlocking tongue and groove boards mounted to framing battens
- Comes untreated and we recommend the application of any of the following:c
- Sikkens Cetol HLS Plus • Restol Wood Oil • Timmersol ETS Double Protectant • Osmo Country Colour • Osmo Natural Oil Woodstain
Internal Cladding
- Pre-cut interior MDF panels for quick and easy assembly for walls and ceiling
- No measuring and cutting every panel
- Wall panels are mounted to 28mm thick battens creating a cavity perfect for routing electrical wiring
- Roof battens are 45mm thick to allow for recess roof lights
- Comes with primer applied – can be painted in a colour of your choice using standard interior emulsion paint
- The panel design has a vertical beaded profile
- The floor is left unfinished for you to add your own choice of covering
Roof Covering
- External roof covering is made from 1.2mm thick EPDM black rubber
- It creates a maintenance free waterproof membrane
- Does not crack, split or rot
- Does not support moss or algae growth
- UV stable & environmentally friendly
- Safe and easy to install – the system is laid with cold applied adhesives (supplied)
- One piece sheet means no joints and no leaks
- 50 years roof life expectancy
- Anthracite grey fascias include
Windows & Doors
- Window material: uPVC 5 chamber
- Window colour: Anthracite grey externally with grained finish Smooth white internally Window locking: Two double clasp, mushroom headed espagnolettes
- Door material: uPVC reinforced 5 chamber
- Door colour: Anthracite grey externally with grained finish Smooth white internally
- Door locking: 7 point multi-lock with ultion three star security barrel
- Glazing 28mm, A rated, double glazed, safety glass
Energy Efficiency
- Highly efficient insulated walls roof and floor
- Double glazed windows
- Warm in Winter, cool in Summer
- Energy efficiency model rating of 78 (category C)*
- Potential to increase to 82 (category B) with the addition of a photovoltaic solar panel
- *based on lighting from 3 x 4 watt LED bulbs and heat from a high efficiency wall mounted heat pump
Tech Specs:
- Weight: 2400 kg
- Dimensions: 342 × 404 × 250 cm
- Construction Type: SIPs panels with external Tongue & Groove cladding/internal MDF cladding.
- Roof Type: Pent
- Treatment: None (Kiln Dried)
- Colour: Natural Timber
- Product Size (h x w x d) cm Overall dimension when assembled, including overhangs: 250 x 404 x 342
- Width at base (footprint) (cm): 403
- Depth at base (footprint) (cm): 304
- Estimated Weight (kg): 2400
- Material: Various – see spec breakdown.
- Country of Origin: United Kingdom
- Wall Cladding Thickness (mm): External 15mm / Internal 9mm
- Door Type (single / double): Double
- Number of Windows: 2 (opening)
- Glazing: Yes – Double
- Glazing Material: Glass
- Roof Material Inner: SIPs panels
- Roof Thickness (mm): 122mm
- Roof Material Outer: EPDM Rubber Membrane
- Floor Material: SIPs panels
- Floor Thickness (mm): 108mm
- Door Locking (eg: plate/wire hasp & staple): 7 point multilock
- Home Delivery Lead Time: 3 weeks
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 416 reviews
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Product Reviews
★★★★★ 1
Hours of my life I won’t get back.
Style: Receiver
I tried to make this system work. I REALLY did. Probably blew 10 hours trying to somehow make it work. Had to return it.
Customer Support - What customer support? Yamaha cut hours from weak 9 to only 5 hrs a day. Email/chat got no call back. It’s so bad I’m not sure Yamaha is gonna make it.
Lip sync - Impossible to fix video to sound lag.
Musiccast wireless - See lag. Also sound is tinny as hell. Also won’t stay linked.
Could not get speakers to respond to giant volume knob. Would respond to app. App was mediocre.
Tried to use with YSP-5600 sound bar which is allegedly Mussiccast. Nope.
In short, it has been a HORRIBLE experience and I really tried.
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Reviewed in the United States on January 12, 2022
★★★★★ 3
Replacing a RXA770/780/880? You May be Disappointed.
Style: Receiver
I will start with the issues. (1.) HDMI audio drop outs. This can be fix by going into your tv and changing your audio settings from auto to pass through. However I remember this causing an inconvenience of some sort. I did not have to make this change with Marantz M1, Sony AZ1000, Or Integra DRX3.4. (2.) when unit goes into auto-standby while using the digital optical input, it will freeze after turning it on again. I had to unplug it to get it to work correctly. this happened every time. (3.) The plastic front panel can scratch easily. You may want to use a can of air to clean it. Yamaha should have flipped the design-the metal/aluminum where the glass/plastic is and the plastic where the metal is. (4) If using the coaxial for tv audio, It will take 9 full seconds before audio is heard. I had to buy a new TV(this was before the other issues were discovered). Finally (5) if you are replacing a RXA770/780/880, you may be disappointed. You'll have to step up to the RXA4A to get the features like PEQ and menus you had with them.
Sound and Power: The 2 channel specs between the Yamaha RXA2A and The Yamaha RN1000A stereo receiver are similar. Don't let that fool you. The RN1000A is way more powerful and sound much better with music, however the A2A was way better than the RN1000A for movies and tv. In full range, sub off, the RXA2A could not drive the Polk RTIa5's well with music. In fact, to me the Marantz M1class D and the Sony AZ1000 70/70w class AB sounded more powerful and musical, making them easier to listen to than the A2A. The Integra best all 3 AVR's for music in full range mode without a sub to my ears. But with the 3.4, the sub output volume was way too low, I hated the click noise(sounds like it powered on again) when turning up master volume, and I couldn't use the presets without changing the source. The Yamaha RN1000a is the best for music only, especially at a sale price.
My Positives:
It come with a 5 year warranty when registered. It's well built, especially better than the Sony. You get 8 presets that you can set to the same source or different sources almost any kind of way. The dialogue mode works very well even for music. Yamaha Support is very helpful. If yours don't come with the above issues/defects that I listed, I think it can be easy to just set it, forget about it and enjoy it.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Excellent AVR!
Style: Receiver
Our projector in our home theater died and I updated to a 4K projector. I was using a 10 year old Onkyo receiver. It was still working fine, but being that old it did not have the latest audio codecs or 4K HDMI, so I decided to go ahead and upgrade my AVR.
I had bought a relatively inexpensive Yamaha for our living room TV a few years ago and have been pleased with its performance. I looked at the RX-A2A and RX-A4A. After reading numerous reviews and tests, I decided to go with the A2A, since it was on sale and much less expensive. The difference in features were not important to me. I only need one HDMI output and only have three inputs. While the A4A has a more powerful amp and better power supply, I thought the A2A would be sufficient since our home theater is "cozy" about the same size as a living room. My speakers in my 7.1 setup are very efficient and we play music and videos at a reasonable loudness.
Still, I was concerned that the A2A would match the performance of the Onkyo with its beefier power supply and more power. My fears were soon put to rest.
After swapping out the units, I set up the A2A. It only took 10 minutes, including running YPAO to calibrate the system. I designed the room carefully and it has acoustic treatments, including bass traps. Therefore, the adjustments made by YPAO were minimal. We watched "No Time to Die", which has a well-regarded soundtrack full of dialog, music and special effects, including some beefy LFE. The A2A handled it all with aplomb, even at a higher-than-normal volume setting. I felt there was a noticeable improvement in audio quality. My adult son, who didn't know I upgraded to the Yamaha, remarked how the audio sounded more balanced and refined, which he attributed my sound treatments (he'd already heard the Onkyo after I had installed them).
Video quality is also excellent, seamlessly passing the HDR 4K signal to the projector. Although I'm frugal and didn't want to upgrade my AVR, I'm glad I did. I'm also glad I went with the A2A.
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Reviewed in the United States on July 8, 2024
★★★★★ 5
Yamaha RX A2A
Style: Receiver, Style: Receiver
It was time to replace my old receiver with a current version. Much of the technology has changed when comparing receivers today versus 20 years ago. However, the Yamaha RX – A2 A offered a great balance between price and features. Hooking up my existing components and high definition television was extremely easy. I would recommend downloading the users manual from the Yamaha website to brush up on all options and features available during set up. The sound reproduction is top notch. I also hear the difference in surround sound reproduction compared to my older model. Once you spend quality time setting up your receiver to reflect the setup you desire, this model does not disappoint. I was able to set up my second zone so I can listen to a completely different input compared to the main room. I especially like the value added Bluetooth feature so I can connect directly to the receiver without any wires connection.
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Great Yamaha quality and features as expected.
Style: Receiver
Love it! Easy set up lots of options. Beautiful immersion sound.
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Reviewed in the United States on August 27, 2025