Little Land Industries RIGA Greenhouses offer superior quality strength and insulation. RIGA 2s Greenhouse - 54 sq.ft.: 8 mm twin-wall glazing in side walls, 10 mm twin-wall poly in front and back gables; 1 roof window with automatic opener, 1 large rear wall window, 1 barn style door with lock (size: 30" wide x 72" high): over all size: 7'8" w x 7' long x 7'1" high Why Riga? The RIGA is truly a greenhouse by the European definition of a greenhouse - designed to be used to grow fresh vegetables, herbs and flowers in the middle of winter. While other so called “greenhouses” using less than 8 mm twin-wall polycarbonate, are considered to be Season Extenders, to be used when only a slight night frost might be expected during the spring or fall season. At best they can only be used to house established plants during the winter season. The RIGA Greenhouse is designed, engineered, and manufactured in Germany by Hoklartherm, a leading manufacturer of commercial and hobby greenhouses, sunrooms, pavillions, pool covers, home additions, and commercial building, with 28 years experience. With a combination of strong materials and durable hardware, the Riga Greenhouse is by far the strongest greenhouse under $5,000. The Riga Greenhouse offers more window and door ventilation than another units it is class. The polycarbonate glazing on the Riga Greenhouse is German made and believed to be of superior quality then the much more common Polygal or GE glazing. The Riga Greenhouse comes with an optional two layer shelving system with removable shelf inserts. This allows for tall plants (beans, tomatoes etc.). The optional 6" high base frame (which is often used to increase the height of the roof), is 2-3" higher than most competitors. One major advantage of the Riga's construction method is that the frame profiles are permanently attached to each other, and won't come loose over time due to wind pressures. German engineering - guaranteed top quality! Optional Shelving: Seedtray/Bench shelf and top shelf are available with strong diagonal support braces – can hold a 160 pound man! White twin-wall polycarbonate shelf inserts can be removed to allow for tall plants such as tomatoes or beans or to allow insertion of heavy-duty seed trays. This greenhouse can flex to your gardening needs throughout the year. The RIGA Greenhouse is attractive and beautiful to look at – fits well in to an upscale garden setting Buying a greenhouse is like buying a car, they vary in cost from cheap to very expensive, the RIGA is a class similar to a Volkswagen/Volvo – stronger, more durable and better insulated, and offers many more features than the better selling brands. The RIGA Greenhouse offers the minimum insulation needed to grow plant year-round – others using less insulation cost too much to heat. RIGA Greenhouse units are available in 5 sizes We recommend you buy one size bigger than you planned. Come with DVD and written Assembly Instructions Made in Germany