Forest Xtend 4 Garden Building

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

• Spacious & Modern – Ideal for home offices, studios, or leisure rooms

• Superior Insulation – SIPs panel construction for excellent thermal efficiency

• 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: 3420 mm

• Height: 2500 mm

• Width: 4040 mm

• Size (Imperial): 8'2" x 13'3" x 11'3" approx.

• Weight: 2400 kg

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

• Colour: Natural Timber

• Doors & Windows: 1 door, 2 fixed windows, 1 opening window

• 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