SKU: 36578586111

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

Sale price$5590.08 Regular price$6211.20
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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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
  • 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:
  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: 36578586111

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Robert Hebert
Boise, US
★★★★★ 5
comfy and well-fitted
Size: 5 Big Kid, Color: Lavender/Multi
My daughter loves the color and the way it fits her feet. Her toes don't feel tight and squished. This is big for her since she has curved nails, and the pressure gives her sores if the shoes are too narrow at the toes. She likes that they are slip ons becasue in a rush, she doesn't like to tie her shoes; the easy use is perfect. She is a runner, not professionally, but she is ten, and she runs a lot at school. These are durable and last a long time compared to cheaper brands. I'm glad she doesn't care for brand names because this is a great shoe that won't break the bank.
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Reviewed in the United States on January 14, 2026
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Lea
Charlottesville, US
★★★★★ 5
If the shoe fits!
Size: 13 Little Kid, Color: Lavender/Multi, Size: 13 Little Kid, Color: Lavender/Multi
We recently purchased these girls’ sneakers, and they’ve exceeded all expectations! First off, the slip resistance is top-notch—perfect for everything from the playground to PE class. My daughter feels confident running, jumping, and playing without worrying about slipping, even on slick surfaces. In terms of value for money, these shoes are a fantastic investment. They’re durable, high-quality, and priced right for growing kids who need reliable footwear. The materials feel premium, and after weeks of wear, they still look and perform like new. The ease of use is a major bonus. The simple design makes them a breeze for kids to put on and take off by themselves. I’m really impressed with the overall shoe quality. The stitching is solid, the soles are supportive yet flexible, and there’s great attention to detail. Plus, they’re lightweight, which is a must for kids who are always on the go. No dragging feet here! And let’s not forget the style—these sneakers are absolutely adorable! All in all, these sneakers hit every mark. They’re safe, stylish, and built to last—highly recommended!
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Reviewed in the United States on May 9, 2025
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molly
Waukegan, US
★★★★★ 5
Cute and comfu
Size: 2 Little Kid, Color: Lavender/Multi
Nice, comfy,easy on and off. Got em twice for granddaughter
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Reviewed in the United States on April 5, 2026
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CFlare
Belleville, US
★★★★★ 5
Great durability & washablity.
Size: 4 Big Kid, Color: Lavender/Multi
These Skechers slip on shoes are perfect for kiddos! I've probably bought +20 pairs between my 3 daughters over the past 3-4 years. The shoes are comfortable, durable, last until the kids outgrow them, and best of all are easy to wash in my clothes washer. Definitely a great value. They come in so many different colors and styles that my kids easily find a pair that satisfy their personal tastes.
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Reviewed in the United States on April 22, 2025
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Emarway
Lowell, US
★★★★★ 5
Excellent product and fit
Size: 3.5 Big Kid, Color: Lavender/Multi
These Skecher shoes are just what i expect from Skechers company. Very soft and comfortable and they fit perfect.
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Reviewed in the United States on December 12, 2025

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