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SKU:HarloW3D4UPVCO

Mercia

Mercia Sherwood Harlow 3mx4m Insulated Garden Room - (UPVC Windows & Doors) - Oak

Mercia Sherwood Harlow 3mx4m Insulated Garden Room - (UPVC Windows & Doors) - Oak

Regular price £12,075.00
Regular price Sale price £12,075.00
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Discover the Harlow Insulated Garden Room with Anthracite UPVC—perfect for a modern home office, studio, or garden gym. Featuring double-glazed UPVC windows and doors, 100mm insulated walls, and a stylish winged design, it's built for year-round use. Customisable finishes and layouts available. Made in the UK using premium materials with a 10-year guarantee. 

Key Features

  • All-Year Comfort: Eco-quilt multi-foil insulation in walls, roof & floor
  • Low-Maintenance UPVC: Anthracite UPVC windows & doors with airtight seals
  • Enhanced Security: Multi-point locking systems on doors and windows
  • Modern Aesthetics: Sleek lines, geometric shapes, and unique winged roof
  • Sheltered Porch Area: Built-in porch offers shade and weather protection
  • Double-Glazed Windows: Maintain temperature and reduce noise
  • Durable Roof Membrane: Waterproof EPDM, guaranteed for 50 years
  • Customisable Finishes: Anthracite, white, oak, and optional timber versions
  • Made in the UK: Sustainably sourced materials with expert local craftsmanship
  • Electrics-Ready: Double-skinned walls with removable panels for wiring 

Specifications 

Specification Details
Product Type Insulated Garden Room
Range Sherwood Premium
Exterior Finish Anthracite UPVC (Also available in Oak, White, or Timber)
Wall Thickness 100mm Double-Skinned with removable panels
Insulation Eco-Quilt Multi-Foil (walls, floor, roof)
Doors French Doors - Anthracite UPVC, Double-Glazed
Windows Double-Glazed UPVC Windows with upgraded locks
Roof Type Flat with Winged Overhang Design
Roof Material EPDM Waterproof Rubber Membrane (50-year lifespan)
Floor Material Tongue & Groove - Fully Insulated
Treatment Untreated – Requires annual wood preservative (for timber cladding)
Custom Options Window quantity, door location, finish options
Installation Fully Installed (Solid, level base required)
Guarantee 10-Year Anti-Rot Guarantee
Manufactured In United Kingdom
Sustainability FSC-Certified, Sustainably Sourced Timber

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