SKU: 46037018447

Forest Garden Xtend 4 x 3.42m Insulated Garden Office with 1/4 Window

Sale price$4614.43 Regular price$5127.15
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Forest Garden Xtend 4 x 3.42m Insulated Garden Office with 1/4 WindowForest Garden Xtend 4. 0M 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 15 year

Forest Garden Xtend 4.0M

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): Single
  • Number of Windows: 2 (fixed), 1 (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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 46037018447

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4.7 ★★★★★
Based on 15 reviews
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Stef
Fort Morgan, US
★★★★★ 5
Shark dog approved
Size: Large, Color: Broccoli, Size: Large, Color: Broccoli
My new baby shark.... I mean puppy really enjoys chewing. I can't just give her a ton of pig ears or bully sticks all day, which she would definitely love, so I'm constantly looking for well made chew toys. I'd put this right up with Kong. Very durable and nice. I also love the different textures, she seems to also love it. She can gnaw at the top and chew on the stem. She wanted it as soon as I opened it - it does smell like bacon but I haven't taken a chomp at it to be able to write a complete review! My dog is about 23 lbs but I can see a 80 lb dog chew this, it's not small.
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Reviewed in the United States on October 8, 2025
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Nunya B
Belleville, US
★★★★★ 4
So cute
Size: Large, Color: Pumpkin
My French Bulldogs have really strong jaws and are aggressive chewers. These really are sturdy and last a good amount of time. They are a bit heavy and awkward for my dogs to hold onto but they do like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
B
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Brandy REVIEWS
Los Angeles, US
★★★★★ 5
Cute toy and super tough!
Size: Small, Color: Lobster
My small dog is a serious chewer, and this lobster toy has been holding up great. Usually, he destroys toys within a day, but this one’s still going strong after a couple of weeks. The shape is perfect — easy for him to grab and chew, and the little claws keep him entertained. The filet mignon flavor must be good because he goes right for it every time. It’s sturdy without being too hard on his teeth, and it doesn’t leave any mess or pieces behind. If you’ve got a small but mighty chewer, this one’s definitely worth it. Cute design, lasts forever, and keeps my pup busy — total win. 🦞🐾
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
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SS
Louisville, US
★★★★★ 5
Excellent toy
Size: X-Large, Color: Lobster
Very durable. Dog who has destroyed every toy ever purchased loves this and it is still in great condition.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
H
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Honorific Tails
Carnegie, US
★★★★★ 3
Cheese the Day with Nylabone's Power Chew Cheese Chew Toy!
Size: X-Large, Color: Cheese
As a devoted dog parent, I've always believed that our furry friends deserve the best, especially when it comes to their favorite pastime—chewing! Nylabone's Power Chew Cheese Chew Toy is a game-changer that's added an extra layer of excitement to our dog's chewing routine. **Chew-Tastic Design:** First things first, the cheese-inspired shape of this chew toy is a hit in our household. Our dog can't resist its quirky design, and it's become a beloved addition to his chew toy collection. It's like a fun surprise every time he reaches for it! **Flavor Pockets for Fun:** What truly sets this chew toy apart is its flavor pockets. We fill them with spreadable treats, turning regular chew time into an epic adventure. Our dog absolutely loves the challenge of getting every last bit of treat, and it keeps him engaged for hours. **Dental Health Bonus:** Beyond the fun factor, the unique textures on this toy serve a dual purpose. Not only do they provide extra sensory enjoyment for our pup, but they also help clean his teeth as he chews. It's a win-win for both entertainment and dental health. **Built to Last:** Now, let's talk durability. Our dog is a power chewer, and this toy has proven to be up to the challenge. Made from Nylabone's most robust material, it's stood the test of time, promoting healthy chewing habits and saving our furniture from destruction. **Satisfaction All Around:** This chew toy isn't just for our dog's enjoyment; it brings joy to our family too. Seeing our furry friend so engaged and happy is priceless. It satisfies his natural urge to chew while teaching him healthy chewing habits. **A Flavorful Experience:** Did I mention the cheese flavor? It runs throughout the toy, adding another layer of enjoyment for our pup. It's like a delicious treat that never ends! **Perfect for Big Dogs:** As the proud parent of an extra-large dog, we opted for the "Souper" size, designed for dogs over 50 pounds. It's the perfect size for our gentle giant. In conclusion, Nylabone's Power Chew Cheese Chew Toy has become an integral part of our dog's life. It's more than just a chew toy; it's an adventure, a dental health solution, and hours of entertainment all rolled into one. We've embraced the mantra of "Cheese the Day" with this fantastic chew toy, and we wholeheartedly recommend it to fellow dog parents looking to add more joy and flair to their furry friend's life!
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Reviewed in the United States on October 27, 2023

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