Forest Xtend 4 Garden Building
excl. VAT
💳 0% APR Finance Available*
The Xtend+ 4 from Forest Garden is a premium garden room designed for home working and versatile living. Crafted from Structural Insulated Panels (SIPs) with a high-quality Tongue & Groove timber exterior, this stylish space offers outstanding energy efficiency (EPC rating C). Double-glazed windows, insulated walls, roof, and floor ensure year-round comfort while keeping energy costs low. Delivered in pre-cut modular panels for easy assembly, the Xtend+ 4 is a smart investment for work, hobbies, or relaxation—backed by a 15-year structural guarantee.
Key Information
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Spacious & Modern – Ideal for home offices, studios, or leisure rooms
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Superior Insulation – SIPs panel construction for excellent thermal efficiency
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Premium Build – Pre-cut Tongue & Groove timber cladding with MDF interior panels
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Weatherproof Design – EPDM rubber membrane roof with a 50-year life expectancy
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Secure & Durable – Double-glazed UPVC doors with a 7-point multi-lock system
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Complete Kit – Includes timber base, SIPs panels, cladding, fixtures, and fittings for assembly
Technical Specification
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Depth: 3420 mm
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Height: 2500 mm
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Width: 4040 mm
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Size (Imperial): 8'2" x 13'3" x 11'3" approx.
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Weight: 2400 kg
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Material: SIPs (Structural Insulated Panels) with timber cladding
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Colour: Natural Timber
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Doors & Windows: 1 door, 2 fixed windows, 1 opening window
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Roof Protection: EPDM rubber membrane (50-year lifespan)
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Locking System: 7-point multi-lock
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Energy Efficiency Rating: 78 (Category C)
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Brand: Forest Garden
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Guarantee: 15 years