Introducing the Duke 11' x 14' with 40” Extension. This modern single-slope roof design allows light to come in through the windows while you enjoy the presence of large timber beams. Experience seamless indoor-outdoor living with three sliding and folding door systems, maximizing space and ventilation. These aluminum-framed, tempered glass door systems offer a 120” and 80” clear opening. The 40” extension adds an additional 39 sq ft of indoor living area, making this outdoor structure a perfect option for a pool house, outdoor living room, dining room or backyard office.