Mercia The Creswell 5m x 4m Insulated Garden Room with White UPVCCreate a sleek and functional extension to your outdoor space with the 5m x 4m Creswell Insulated Garden Room, finished with contemporary white UPVC windows and doors. Spacious and stylish, this garden room is perfect for year round use whether youre launching a home business, building a private home gym, or simply craving a calm and quiet reading space. With a fully insulated floor, walls, and roof, this structure is designed to keep you warm in