Forest Xtend 3+ Garden Building

The Xtend+ 3 from Forest Garden is a premium garden office designed for modern home working. Made from energy-efficient Structural Insulated Panels (SIPs) with a sleek Tongue & Groove timber exterior, this stylish space is as efficient as a new-build home (EPC rating C). Double-glazed windows and superior insulation ensure year-round comfort, while its modular design allows for easy assembly. Perfect for work, hobbies, or relaxation, the Xtend+ 3 is a smart, long-term investment backed by a 15-year structural guarantee.

Key Information

• Modern & Versatile – Ideal for home offices, hobbies, or relaxation spaces

• Superior Insulation – SIPs panel construction for energy efficiency and lower heating costs

• Premium Build – Pre-cut Tongue & Groove timber cladding with MDF interior panels

• Weatherproof Design – EPDM rubber membrane roof with a 50-year life expectancy

• Secure & Durable – Double-glazed UPVC doors with a 7-point multi-lock system

• Complete Kit – Includes timber base, SIPs panels, cladding, fixtures, and fittings for assembly

Technical Specification

• Depth: 2900 mm

• Height: 2500 mm

• Width: 2980 mm

• Size (Imperial): 8'2" x 9'9" x 9'6" approx.

• Weight: 1800 kg

• Material: SIPs (Structural Insulated Panels) with timber cladding

• Colour: Natural Timber

• Doors & Windows: 2 opening windows, double-glazed UPVC doors

• Roof Protection: EPDM rubber membrane (50-year lifespan)

• Locking System: 7-point multi-lock

• Energy Efficiency Rating: 78 (Category C)

• Brand: Forest Garden

• Guarantee: 15 years