Which Shed

Which Shed Score

Which Shed Score

Forest Xtend 3.0+ Insulated Garden Office 2.98m x 2.9m (97mm)

Shedstore
£9199.00
Buy Sheds Direct
£9199.00

The innovative Forest Xtend 3.0+ Insulated Garden Office is a contemporary garden space tailored to suit your active lifestyle. Along with serving as a perfect home workspace, this versatile garden structure doubles up as a year-round family living area or a cozy hobby retreat.

Pioneering Build
Diverging from traditional home extensions, this premium garden office is crafted using pre-cut, modular Structural Insulated Panels (SIPs). Renowned for superior insulation, energy efficiency and durability, SIPs are rapidly becoming the construction method of choice for many modern homes. Unlike competitors, the Xtend series features SIP construction not only for the walls but also for the roof and floor, resulting in a fully insulated garden office from top to bottom.

The exceptional insulation ensures a damp-free, cool summer, and warm winter interior, creating a conducive work environment for home-based activities throughout the year.

Each wall SIP comprises 97mm insulation enclosed between two OSB boards. Further insulation and finishing are provided by both outer and interior cladding. The interior cladding, primed and ready for painting, consists of MDF with a vertical beaded profile for an elegant aesthetic. On the outside, the high-quality 15mm kiln-dried tongue and groove timber cladding not only provides a stylish look but also ensures weather resistance. Combining SIPs, cladding, and cavities yields an impressive overall wall thickness of 177mm.

Floor and Roof
To boost insulation, the 108mm floor and 122mm pent-style roof also comprise SIPs. While the floor remains uncovered to allow customization with carpet, laminate, or other flooring options, the roof interior is lined with pre-primed cladding for painting. The roof exterior showcases a market-leading black EPDM weatherproof covering with an outstanding 50-year lifespan. This maintenance-free rubber roof is UV-stabilized, resistant to splitting, cracking, moss, or algae growth, and finished with anthracite grey facias for a modern touch.

Forest does not provide electrical installations. However, the 28mm wall battens and 45mm roof battens are designed to accommodate the installation of electrical wiring and recessed lighting by a qualified electrician.

Entryways and Windows
Access to this garden office is facilitated through double-glazed UPVC doors, secured by a 7-point multi-lock mechanism for enhanced security. Two full-length double-glazed windows allow natural light to flood the interior, with the top portions of both windows designed to open for ventilation. The doors and windows feature grain-effect grey outer and smooth white inner frames, combining aesthetics and durability.

Customization and Setup
Available in 3 sizes and with 3 door/window configurations, this top-tier insulated garden office comes with all necessary fixtures, fittings, exterior facias, and a detailed installation guide for straightforward setup. Forest offers a professional installation service performed by expert fitters.

Energy Efficiency and Maintenance
With an energy rating of 78 (category C) and the potential to reach 82 (category B) with a photovoltaic solar panel addition, this garden office epitomizes energy efficiency. Delivered untreated, the exterior will require treatment upon assembly and annual upkeep. Forest Garden recommends utilizing one of the suggested treatments for maintenance.

Delivery
Most UK addresses benefit from free delivery, with free pick-a-day delivery offered in many regions. Some remote postcodes may incur additional charges. Refer to the delivery information for comprehensive details.

– 15-year structural warranty
– Manufactured in the UK using cutting-edge Structural Insulated Panels (SIPs)
– Equipped with 15mm tongue and groove external cladding and MDF interior walls
– 108mm SIP floor and 122mm SIP roof for total insulation
– Features EPDM weatherproof roof with a 50-year lifespan
– Double-glazed UPVC doors with 7-point multi-lock system
– Includes 2 full-length double-glazed windows
– Offered in 3 sizes and with 3 door/window configurations
– Energy rating of 78 (C) with potential to reach 82 (B)
– Free delivery to most UK addresses

Related Products

Petra Tongue and Groove Reverse Apex Summerhouse  - Wooden / 20x10 ft / No

BillyOh Petra Interlocking Reverse Apex Garden Cabin – Timber / 20×10 feet / No

£1862.49
Loxley 16' x 4' Stanton Summer House With Side Shed

Loxley 16′ x 4′ Stanton Summer House With Side Shed

£1509.00
Oren 12' x 6' Apex Combi Summer House with Side Store - 4ft

Oren 12′ x 6′ Peak Combination Summer Cottage with Side Storage – 4ft

£1544.00
Bards 22' x 12' Portia Bespoke Insulated Garden Room - Painted

Writers 22′ x 12′ Portia Tailored Insulated Garden Structure – Colored

£24019.00
Adley 5m x 4m Tiddington Insulated Garden Room

Stylish 5m x 4m Adley Tiddington Insulated Garden Room

£12569.00
Garden Office - 14'x10' The Balinese 44mm Log Cabin - Whichshed.co.uk

Welcome to our exclusive Garden Workplace: The Balinese 44mm Log Cabin at a size of 14’x10′ – On Whichshed.co.uk

£3949.99
Penton Corner Summerhouse with Side Store  - Wooden / Store on the left / No

Sunny Corner Summerhouse with Side Store – Timber / Storage on the left / Nix

£1012.29
Hartwood 6' x 4' Worcester Pressure Treated Shiplap Pent Summer House

The Hartwood 6′ x 4′ Worcester Shiplap Pent Summer House with Pressure Treated Wood

£544.00
Garden Office - 10'x8' The Alpha Barn 28mm Log Cabin - Whichshed.co.uk

The Alpha Barn – 10’x8′ Garden Workplace – Whichshed.co.uk

£2121.99
Oren 14' x 8' Pent Combi Summer House with Side Store - 6ft

Oren 14′ x 8′ Pent Combination Summer House with Side Storage – 6ft

£2019.00
Garden Office & Garden Gym Room - 14'x8' The Javan 28mm Log Cabin - Whichshed.co.uk

Outdoor Workspace & Fitness Space – 14’x8′ The Javan 28mm Log Cabin – Whichshed.co.uk

£2619.99
12'x6' TigerFlex® Shiplap Pent Full Pane Summerhouse - Whichshed.co.uk

12’x6′ TigerFlex® Shiplap Pent Full Pane Summerhouse – Whichshed.co.uk

£1284.99
Bella Tongue and Groove Pent Summerhouse  - Wooden / No / 8x8 ft

Bella Intonation and Notch Pavilion – Timber / No / 8×8 ft

£946.79
Bards 16' x 14' Othello Bespoke Insulated Garden Room - Cedar

Bards 16′ x 14′ Othello Tailored Weatherproof Garden Retreat – Cedar

£32149.00
Beckwood Apex Summerhouse 6x4 - Installation Included / Without Base

Beckwood Summit Cabin 6×4 – Setup Provided / Minus Foundation

£1160.99
Bards 6' x 10' Popular Custom Summer House - Pre Painted

Bards 6′ x 10′ Well-Known Customized Summer House – Pre-Coated

£2394.00
Garden Office - 18'x12' The Procas 44mm Log Cabin - Whichshed.co.uk

Outdoor Workspace – Procas 44mm Log Cabin 18’x12′ – Whichshed.co.uk

£4972.99
Hartwood Life Time 8' x 10' Pressure Treated Overlap Apex Summer House

The 8′ x 10′ Harmonious Nature Timeless Overlap Apex Summer House by Hartwood

£914.00
Garden Office - 16'x16' The Siberian 44mm Log Cabin - Whichshed.co.uk

The Siberian Log Cabin – 16’x16′ Stylish Office Space – Whichshed.co.uk

£5003.99
Loxley 7' x 11' Oxhill Corner Summer House With Side Shed

The Loxley 7′ x 11′ Oxhill Corner Summer House With Side Shed

£1189.00
Beckwood Apex Summerhouse 8x6 - Installation Included / With Base

Beckwood Apex Summerhouse 8×6 – Full Setup / Complete with Foundation

£1682.99
4LIFE Apex Summerhouse 8x10 - With Base / Installation Included

4LIFE Apex Summerhouse 8×10 – With Base / Setup Included

£1923.99
Garden Office - 12'x8' Martel Log Cabin - 44mm Garden Log Cabins - Whichshed.co.uk

Outdoor Workspace – 12’x8′ Martel Log Cabin – 44mm Garden Log Buildings – Whichshed.co.uk

£2917.99
Garden Office - 14'x8' Martel Log Cabin - 44mm Garden Log Cabins - Whichshed.co.uk

Outdoor Workspace – 14’x8′ Martel Log Cabin – 44mm Garden Log Sheds – Whichshed.co.uk

£3152.99
10'x10' Tiger Summerhouse - Whichshed.co.uk

Tiger Summerhouse 10’x10′ – Whichshed.co.uk

£1592.99
Bards 10' x 10' Miller Custom Summer House - Pre Painted

Bards 10′ x 10′ Miller Tailor-Made Summer Residence – Pre Tinted

£4864.00
14'x12' Optima Log Cabin - 44mm Garden Log Cabins - Large Garden Cabin (Perfect Garden Office Or Studio) - 0% Finance - Buy Now Pay Later - Tiger Sh

14’x12′ Optima Log Cabin – 44mm Garden Log Cabins – Spacious Garden Cabin (Ideal Garden Workspace Or Art Studio) – Interest-Free Payment Option – Purchase Immediately Pay Later – Tiger Sh

£5572.99
8' x 6' Forest 4Life 25yr Guarantee Double Door Apex Summer House - 5 Windows (2.42m x 1.99m)

8′ x 6′ Woods 4Life 25-Year Warranty Dual Door Apex Garden Studio – 5 Glass Panes (2.42m x 1.99m)

£634.99
Garden Office - 18'x12' The Delta 44mm Log Cabin - Whichshed.co.uk

Backyard Workspace – 18’x12′ The Delta 44mm Log Cabin – Whichshed.co.uk

£5493.99
Garden Office - 12'x8' The Persian 28mm Log Cabin - Whichshed.co.uk

The Persian 28mm Log Cabin – Garden Office – 12’x8′ From Whichshed.co.uk

£2359.99
8'x6' Tiger Elite Pressure Treated Octagonal - Whichshed.co.uk

8’x6′ Tiger Elite Pressure Treated Octagonal – Whichshed.co.uk

£2567.99
Oakley Pent Summerhouse  - With Base  / 10x6  / No Installation

Summerhouse Oakley Pent – With Base / Dimensions: 10×6 / No Assembly Required

£1274.99
20'x10' Tiger Retreat Contemporary Summerhouse - Whichshed.co.uk

Tiger Retreat Contemporary Summerhouse 20’x10′ – Whichshed.co.uk

£2322.99
7'1x6'2 Shire Traditional Gazebo Wooden Hexagonal Summer House

A Handsome Wooden Hexagonal Summer House by Shire – 7’1×6’2 in Size

£584.99
Garden Office - 14'x12' The Sabre 28mm Log Cabin - Whichshed.co.uk

Backyard Studio – 14’x12′ The Sabre 28mm Log Cabin – Whichshed.co.uk

£3102.99
Garden Office - 10'x10' The Caspian 28mm Log Cabin - Whichshed.co.uk

Backyard Workspace – The Caspian 10ftx10ft Log Cabin – Whichshed.co.uk

£2420.99
Garden Office - 14'x18' The Zeta 44mm Log Cabin - Whichshed.co.uk

The Zeta 44mm Log Cabin – 14’x18′ Garden Studio at Whichshed.co.uk

£5324.99
Oren 20' x 8' Pent Combi Summer House with Side Store - 4ft

Oren 20′ x 8′ Pent Combi Summer House with Side Store – 4ft

£2739.00
Bards 20' x 14' Othello Bespoke Insulated Garden Room - Painted

Bards 20′ x 14′ Othello Tailored Insulated Garden Room – Painted

£24529.00
Bards 14' x 10' Yorick Bespoke Insulated Garden Room - Painted

Theater 14′ x 10′ Yorick Tailored Insulated Garden Chamber – Embellished

£16859.00

FAQs

The size of the shed depends on what you plan to store or use it for. Measure the items you plan to store and consider any additional space for moving around or future storage needs. Common sizes range from small (6×8 feet) for basic storage to large (12×24 feet) for workshops or extensive storage.
Sheds are typically made from wood, metal, or plastic. Wood is aesthetically pleasing and customizable but requires more maintenance. Metal sheds are durable and secure but can be prone to rust. Plastic sheds are low-maintenance and easy to assemble but may not be as sturdy as wood or metal.

Permit requirements vary by location. Check with your local building department or zoning office. Typically, small sheds (under 120 square feet) may not require a permit, but larger ones or those with electrical installations often do.

A solid foundation is crucial for stability and longevity. Options include concrete slabs, gravel bases, or wooden platforms. Choose a foundation based on your shed’s size, material, and the ground conditions of your site.
Look for sheds with features like weather-resistant materials, proper sealing, and robust construction. Ensure the shed has a good roof overhang, proper drainage, and secure locking mechanisms to protect against theft and weather damage.
Assembly time depends on the size and complexity of the shed. Small, simple sheds can be assembled in a few hours, while larger or more complex sheds may take a full day or more. Professional installation is also an option for those who prefer not to DIY.
Maintenance depends on the material. Wooden sheds need periodic painting or staining and checking for rot or pests. Metal sheds may need rust prevention treatments. Plastic sheds require minimal maintenance, typically just cleaning as needed.
Moving a shed is possible but can be challenging, especially for larger structures. It’s easier to move a smaller shed if it has a solid base. Consider the logistics and potential costs of moving before installation. If moving is likely, a portable shed might be a better option.
Many sheds come with detailed assembly instructions, making them suitable for DIY installation, especially smaller models. However, larger or more complex sheds may require professional installation to ensure they are properly and safely assembled. Assess your skill level, available tools, and the complexity of the shed before deciding.