greenhouse kits and hydroponics systems

"RIGA IV Select Greenhouse 9' 8"" W x 14'L x 7' 6"" H With Shelving"

"Free Shipping - Top Quality! 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. With a combination of strong materials and durable hardware, the Riga is by far the strongest greenhouse under $5,000. Strength: The Riga hobby greenhouse is constructed with an attractive rustproof aluminum frame. Heavy duty 10mm twin wall polycarbonate on the end walls. Sturdy 8mm twin wall polycarbonate on the roof and side walls. German engineered slide-together assembly. The ""onion"" shape helps shed heavy snow loads. Reliability The Riga greenhouse kit comes with a 15 year warranty on the frame and 10 years on the covering! The unique greenhouse roof provides plenty of headroom and the roof vent(s) include automatic opener(s). The extruded aluminum frame is precision engineered and with polycarbonate installed, is strong enough to stand on. Quality: With the thickest twin wall polycarbonate offered on a backyard greenhouse, the Riga hobby greenhouse carries the highest R factor of any hobby greenhouse on the market. This makes the Riga less expensive to heat. You also get FREE SHIPPING in the Continental U.S. Simplicity The unique ""channel"" design of the aluminum components allows for simple ""slide and fit"" assembly, thus saving time and money. Easy to understand step by step assembly instructions are included with every structure. Features Include: Oversized rear-wall window Automatic Window Openers All mounting hardware 8mm twin-wall polycarbonate glazing 10mm in the front & back RIGA 10 year guarantee on Panels RIGA 15 year guarantee on Frame Riga Models Riga III 9' 8"" W x 10'6""L x 7' 6"" Riga III Plus 9' 8"" W x 10'6""L x 7' 6"" Riga IV 9' 8"" W x 14'L x 7' 6"" H Riga IV Plus 9' 8"" W x 14'L x 7' 6"" H Door Widthr 30"" x 79"" 30"" x 79"" 30"" x 79"" 30"" x 79"" Roof Windows 1 Roof Windows 2 Roof Windows 2 Roof Windows 2 Roof Windows Auto-Vent Openers Included Included Included Included Shelving Optional 2 14"" & 25"" Shelves 2 14"" & 25"" Shelves 2 14"" & 25"" Shelves Hanger Hooks Optional Optional Optional Optional Greenhouse Base Optional Optional Optional Optional"