8 ft x 20 ft Black Greenhouse


Not all greenhouses are created equal, and Riverstone Industries’ Monticello range of greenhouses proves that. Monticello is proudly made in the USA. Applying old American ingenuity to manufacture the bost products for our customers and help raise the industry standard for all greenhouses. Our greenhouses are constructed of the highest quality extruded aluminum (US grade – not the thinner and brittle foreign aluminum) and electrostatically painted black (guaranteed 0.0% lead) with an average use of over 85 lbs. It uses more aluminum than general imported greenhouses. Why is this important? The weaker the frame, the less snow the greenhouse can hold before it collapses in winter, and the more easily it is damaged by the wind. While most hobby greenhouses on the market use cheaper thinner wall and roof materials (Crystal Clear walls are as thin as 0.2mm), the Monticello uses professional grade 8mm double wall polycarbonate. This is the same thickness used in commercial greenhouses. The double-walled polycarbonate acts as a double-layered storm window, keeping cool air in during the warmer months and insulating the greenhouse from cold air during the winter. Not only does this allow Monticello to grow more efficiently for longer than other greenhouses, but it also increases growing efficiency, reducing electricity bills for those who choose to grow year-round. Since the average greenhouse on the market today takes a full weekend to assemble, it’s easy to see why so many greenhouse owners say the number one issue within the first 2 months of ownership is the actual setup. When designing Monticello, we listened to the owner and considered the construction process.
* Integrated dual rain water gutter system
* HInged Lockable Double Doors
* Black electrostatically painted frame
* Expandable – ability to expand greenhouse in 4ft increments as needs grow
* 4- 2ft x 2ft roof vent with automatic opener


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