The 6m x 3m Mercia Cresswell Insulated Garden Room features 100mm thick double-skinned walls containing Eco-quilt multi-foil insulation. It is perfect for all-year use as a garden office, guest space, or garden gym. The key features include:. *Free Home Installation. *14mm Double glazed with 2 top opening windows and 2 fixed windows. *EcoQuilt insulated walls and roof. *Air Tec Insulated floor. *Customisable design. *Solid Sheet Board Interlocking Tongue and Groove Roof. *16mm Tongue and groove floor. *10-year anti-rot guarantee. Compare prices from: Mercia in Outdoor Equipment