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Riverstone MONT Greenhouse 8x20

Riverstone MONT Greenhouse 8x20

Regular price $6,099.99 USD
Regular price $5,500.00 USD Sale price $6,099.99 USD
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Here is an extra $100 off just add the code "100OFFVIP".

Riverstone MONT Greenhouse 8x20

Riverstone, RSI, Monticello, greenhouse, outdoor structure, blackNot all greenhouses are built the same and the MONT line of greenhouses by Riverstone Industries proves this to be true. The MONT is proudly made in the USA.

Constructed from the highest quality extruded aluminum (US grade - not the thinner & more brittle foreign aluminum) and electrostatically painted Black (guaranteed to contain 0.0% lead), our greenhouse uses on average more than 40 lbs. More aluminum than the average imported greenhouse. 

Riverstone, RSI, Monticello, greenhouse, outdoor structure, blackThe MONT uses professional grade 8mm twin wall polycarbonate. This is the same thickness as used in the commercial greenhouses. The twin wall polycarbonate acts as a double pain window keeping cooler air in during warm months and insulating the greenhouse from cold air in the wintertime. 

At 7ft 6in tall at the peak the MONT's above average interior height design also helps with displacing heat within the greenhouse while also allowing for the tallest gardeners not to have to bend down when inside the greenhouse.

From the integrated base to the built in rain water gutter system, to the automatic roof vent opener and the newly redesigned hinged double doors with an opening of almost 6ft high x 4 & ½ft wide ensures you are sure to enjoy the MONT greenhouse for years to come.

The Mont also offers the ability to grow as your needs grow with the 4ft extension kit that can be purchased anytime in the future. 

🌿 Proudly designed and made in the USA 

Features and Specifications of the Riverstone Mont 8x20  Greenhouse:

  • 🌳  Dimensions: 8 x 20 x 7'6
  • 🌳  Exterior Base Dimensions: 101" x 247" x 90"
  • 🌳  Large 4x6 ft wide door opening
  • 🌳  Four - 2x2 ft roof vent with automatic opener,
  • 🌳  Integrated dual rain water gutter system
  • 🌳  Hinged Lockable Double Doors
  •  Includes NEW Door Latch and Vent Locks for extreme weather conditions
  • 🌳  New Patent Pending Twist & Lock single bolt (makes assembly quicker and easier over prior version)
  • 🌳  Quick assembly construction
  • 🌳  Integrated flush base design
  • 🌳  High impact UV stable 8mm twin wall polycarbonate walls and roof,
  • 🌳  Heavy duty extruded aluminum frame construction OR Black electrostatically painted frame
  • 🌳  Full 10 year warranty (strongest in the industry);
  • 🌳  Care InstructionsSoapy Water
  • 🌳 Snow load capacity of 24lbs/sq. ft.,
  • 🌳 Wind load of 65 MPH
  • Allow for a FULL weekend to Fully Assembly (ground prep NOT included). Two people suggested for assembly.  Actual time to construct will depend on size of the greenhouse and skill levels.


    • 🌳  All Aluminum framework, all Polycarbonate panels, set of assembled double doors, hardware, instruction manual, screw driver and wrench


    • Option 1: You may increase the size of your greenhouse by adding a 4 ft extension to the greenhouse. Dimension: 4x8x7'6"
    • Option 2: Save money and get our premium package that includes the following:

      • 🌳  The 8ft Riverstone Mont greenhouse
      • 🌳  Monticello work bench systemThe Monticello Work Station Kit is specifically designed for the Monticello line of 20FT greenhouses. The bench will hold up to 600 lbs. The sturdy vented shelving units on the Work Station are constructed from commercial grade high impact PVC. The vents allow water and air to circulate as well as allowing sunlight to reach underneath the Work Bench.  The Work Station can be installed either during initial construction or at a later time. The Kit Includes a  workbench (24” deep) for use on either side of the Monticello greenhouse. Since the installation of the support bars uses the inside bolt tracks the shelving could be set at any height within the greenhouse (up to 4ft off the ground)
      • 🌳  Monticello interior shading Cloths:  The design is simple, unique and thoughtful. The Monticello Shade Cloth kit comes ready to use, no grommet installation needed. The commercial grade shade cloth (rated at 63%) works off a specially designed commercial grade wire system guaranteed to last for 7 years. The shade cloth comes in 4 foot sections. To operate the Shade Cloth System is as easy as pulling the cloth back to open or pulling tight to the other side to close. 
      • 🌳  Monticello programmable watering system:  The Commercial grade system is similar to those used by professional growers. The Automatic Greenhouse Watering System is designed to be hung from the ceiling of the greenhouse. The 1 weighted sprinkler heads are separated by 4ft spray in a circular pattern. The Commercial digital timer is designed to allow for customer watering cycles based on climate and time of year. The Commercial grade hose is specifically designed to eliminate any bacteria or mold from the inside allowing for years of safe use. The end of the system is easily and quickly screwed onto one of the timer. The other end of the timer is screwed directly into the spigot.
      • 🌳  Monticello greenhouse potting sink

    Important Shipping & Delivery information from the manufacturer:

    Customer’s Responsibility:

    🌳 Using the tracking number, you can determine how many boxes should be delivered. If you have not received all your boxes within 14 days of shipment, please reach out to us.

    🌳 A complete inventory of all boxes needs to be done within the first 90 days of receiving boxes.

    🌳 If any of the boxes are damaged in shipment, please DO NOT refuse the shipment. Be sure to take images of the damaged packages and parts. Any missing or damaged parts will be provided to within the first 90 days. Part requests can be ordered through the Riverstone Industries website:

    The following video shows how to assemble a Riverstone Monticello Greenhouse