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Black Aluminum

Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System

Item # MONT12BKAL
exclusively online
$2,699.99
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$3,899.99
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8' x 12'
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Product Details
Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System
Built tough to last. Not all greenhouses are built the same and the Monticello Greenhouse proves this to be true. The Monticello is proudly made in the USA from start to finish. Constructed from the highest quality extruded aluminum (US grade - not the thinner and more brittle foreign aluminum) and electrostatically painted (guaranteed to contain 0.0% lead), this greenhouse uses on average more than 70 lbs more aluminum than the average imported greenhouse. Why is this important? The weaker the framework the less snow the greenhouse can hold in the winter time before collapsing on itself also the easier it will be get damages in wind.

While most hobby greenhouses on the market use less expensive thinner walls and roofing materials (the crystal clear walls are as thin as .2mm), the Monticello 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. This not only makes the Monticello more efficient to grow in for a longer period of time than other greenhouses but it also adds to the efficiency of growing, cutting down electric bills for those who choose to grow year round.

With the average greenhouse on the market today taking a solid weekend to assemble, it is easy to see why so many greenhouse owners say that the top issue in the first 2 months of ownership is the actual setup. Through a combination of using superior materials that are more rigid and creating interchangeable parts in its design, the Monticello takes the average gardener 5.5 hours to assemble.
  • 8' x 12' Greenhouse
  • Roof vent with automatic openers
  • Integrated dual rain water gutter system
  • Dual low profile "easy roll" sliding entry doors with locking ability
  • Expandable in 4' increments
  • Solar powered
  • Easy assembly - under 4 hours
  • Integrated flush base design
  • Electrostatically painted frame
  • Wide double sliding doors
  • High impact UV stable 8mm twin wall polycarbonate walls and roof.
  • Heavy duty extruded aluminum frame construction.
  • Care instructions: Use warm soapy water.
  • Measures 8.7'W x 7.6'H x 8.1'D
  • Weighs 246 lbs
  • Available in black or aluminum (in-stock status may vary).
  • In the box: all aluminum framework, all PC panels, set of double doors (assembled), instruction manual, screwdriver, and wrench
  • Made in USA
additional information
10 Year Limited Warranty

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Reviews

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Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12'
 
5.0

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Weather proof (4)
  • Attractive (3)
  • Extends season (3)
  • Keeps animals in/out (3)
  • Solid construction (3)

Cons

    Best Uses

      Reviewed by 6 customers

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      Displaying reviews 1-6

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      5.0

      Commercial greenhouse for Homeowners

      By MoutainManDan

      from Aurora, CO

      About Me Novice

      Pros

      • Attractive Design
      • Extends Season
      • Keeps Animals In/Out
      • Solid Construction
      • Weather Resistant

      Cons

        Best Uses

          Comments about Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12':

          We purchased the Monticello Greenhouse for a few reasons, it is attractive, we like the rich black color, it has much thicker and better insulated walls than other units being sold, it has a very strong warranty, and it is made in the USA.

          Once we received the greenhouse and the multiple boxes we started to put it together. You need to know that with this greenhouse and with most of the others you are recommended to build a platform to put the greenhouse on. Which we did not know until we received the manual. It was just an extra step we did not plan on.

          Assembly was easy but it did take us 2 hours longer to assemble than we had seen in on line. The simple part was that it uses these screws and nuts that lock into place with a twist of the screw. Once the panels are put into place it really stiffens the greenhouse structure up.

          We had questions on the process and the customer service at Monticello was great. They helped explain what we did not understand and got us through it very quickly and easily. They even followed up with a call afterwards to make sure that there were no other issues. That is one reason to buy American Made Products.

          We have been using the greenhouse since June and absolutely love it. Growing in a greenhouse is a little different and does take some getting used to . It is warmer and this causes plants to dry out quicker but the Monticello people were great with helping with solutions like their automatic water system, which I highly recommend, and their interior shade system.

          We are very very happy with our purchase and would recommend this to others.

           
          5.0

          Monticello 12 foot Black Greenhouse

          By C-Note Gardener

          from Debuque, IA

          About Me Handyman

          Pros

            Cons

              Best Uses

                Comments about Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12':

                Love my new greenhouse. It's sturdy, looks nice, and very user friendly. I'm having lots of fun with it. I was worried about high winds when we were putting it together, but it does not have any problems handling high wind. It is not air tight, but you can't feel any wind at all when you are inside it. It was very easy to put together but took some time. Just be patient. The directions were fine. I really like how the greenhouse looks and how solid the entire thing is. The panels are solid and are called twin walls which insulate like a double pain window. There are no gaps at all even where the joints and panels come together. I really do think this is a neat little greenhouse and I would buy it again without a doubt and would strongly recommend this to anyone who is interested in a greenhouse.

                (1 of 1 customers found this review helpful)

                 
                5.0

                Monticello greenhouse

                By Christiankfromconnecticut

                from Mystic, ct.

                About Me Novice

                Pros

                • Attractive Design
                • Easy to set up
                • Extends Season
                • Keeps Animals In/Out
                • Solid Construction
                • Weather Resistant

                Cons

                  Best Uses

                    Comments about Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12':

                    We bought the Monticello greenhouse after researching many greenhouses and sites and found that the Monticello on Meijer was the best all around.

                    It took us a few hours to set up and another few hours to organize. We started growing in the greenhouse right away.

                    We went back and bought the other accessories to complete the greenhouse.

                    (2 of 2 customers found this review helpful)

                     
                    5.0

                    Great American Made Product

                    By Handyman JIm

                    from Traverse City, MI

                    About Me Handyman

                    Pros

                    • Attractive Design
                    • Extends Season
                    • Keeps Animals In/Out
                    • Made in the USA
                    • Solid Construction
                    • Weather Resistant

                    Cons

                      Best Uses

                      • Extending growing season
                      • Greenhouse growing
                      • Protect Garden

                      Comments about Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12':

                      I was a handyman by trade for 40 years and always support products that are made in the USA. You pay more for them but WOW what a solid structure. I have put together between 8-10 in my life for other people and was impressed with the easy to read instruction manual and the detailed images in the manual. The structure itself is the beefiest one I have worked on. All the others that I had assembled in the past came from China, Europe, or Israel and the metal thickness and the plastic sides were not as thick.

                      I did have a question at one point and the customer service at the Monticello company was great. They walked me through the assembly process that I had questions with and was able to move onto finishing the greenhouse quickly.

                      We did decide to also purchase the work bench system and the shade system. These were very easy to install as well.

                      We are just starting to plant our seeds for the Fall and with a little heater should be able to grow vegetables through most of the Winter months.

                      (2 of 2 customers found this review helpful)

                       
                      5.0

                      Top Notch Product & Customer Service

                      By CrashFromTexas

                      from Comfort, TX

                      About Me Budget Shopper

                      Pros

                      • Easy assembly
                      • Great Instructions
                      • Weather Resistant

                      Cons

                        Best Uses

                        • Hobby Greenhouse

                        Comments about Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12':

                        First of all, let us say what a great greenhouse this is. And, just as important as the quality of the Monticello Greenhouse is their exceptional customer service. We bought an 8x12 greenhouse in April 2012. When it arrived we discovered the doors had been damaged in shipping. We reported this to Riverstone Mfg and a few days later, we had new doors. We did experience some alignment problems during assembly. Riverstone's engineer contacted us and through his help discovered that 3 twin-wall panels (corners slightly crushed during shipping) were the cause of this problem. Riverstone immediately sent out replacement panels and a few days later we were back in business. The greenhouse then went together smoothly. We were and are still very impressed with their Customer Service.

                        The greenhouse is easy to assemble and instructions are some of the best we have run across. We don't think the greenhouse can be assembled in 4-5 hrs as seen on YouTube, but with two people can easily be assembled in one day.

                        The completed greenhouse is rock solid – no rattling of the twin wall panels & all the metal parts are of heavy-duty construction. While the interior shade cloth is an accessory, it is well worth the money and is a great & convenient addition.

                        We decided to buy this greenhouse after a great deal of research & were impressed by the answers to our questions we received from Riverstone. We have not been disappointed.

                        While there are cheaper greenhouses on the market, from what we have seen, heard, and read from reviews; none of them match Riverstone's quality and ease of assembly. As a side note we do not write reviews, but felt this product was worth our time. We are budget-minded shoppers and don't part with our money easily. As the old saying goes, "You get what you pay for", we felt it was worth it, and as a plus is made in the USA.

                        (3 of 3 customers found this review helpful)

                         
                        5.0

                        Little Expensive But Worth It

                        By GeorgiaBoy23

                        from Atlanta

                        About Me Midrange Shopper

                        Pros

                        • Durable
                        • Easy to set-up
                        • Heavy duty
                        • Nice Looking
                        • Well insulated

                        Cons

                        • Heavy

                        Best Uses

                        • Garden

                        Comments about Monticello 8x12 Outdoor Greenhouse with Dual Rain Water Gutter System Black 8' x 12':

                        We are really happy we bought the greenhouse. Set-up was not too bad, pretty close to what the website said it would be. The house is a nice black color which was one reasons e bought it.

                        Hopefully will have baskets full of vegetables in a few months.

                        Displaying reviews 1-6

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