Elegant & attractive, the Quality Yard & Garden Greenhouse will give years of growing pleasure, increase property value and will be the perfect addition to your landscape. The Quality is available in 12' and 16' widths, and is covered with the industries best 8mm twin wall polycarbonate offering a 15 year manufacturers warranty with a 20 year life expectancy. Polycarbonate has excellent insulation values and is virtually unbreakable. Above ground construction utilizes 2" x 2" galvanized base rails with pre-welded stanchions allowing ease of construction. The Quality Greenhouse is offered with your choice of heating, cooling and benches.