Riverstone | MONT Premium Greenhouse Kit Package with 8mm Twin-wall Polycarbonate Glazing

Riverstone Industries

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Regular price
$4,149.99
Regular price
$4,599.99
Sale price
$4,149.99
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Estimated Arrival: Between Oct 28 and Nov 04.

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Not 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, applying good old American ingenuity to make the best product for our customers and help to elevate the industry standards of all greenhouses. 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 40 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 wintertime before collapsing on itself, also the easier it will get damaged 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 MONT Greenhouse uses professional grade 8mm twin-wall polycarbonate. This is the same thickness as used in commercial greenhouses. The twin-wall polycarbonate acts as a double plane window keeping the cooler air in during warm months and insulating the greenhouse from cold air in the wintertime. This makes the MONT Greenhouse more efficient to grow in for a longer period of time than other greenhouses, for those who choose to grow year-round.

This is a Premium Package, which includes the MONT Greenhouse, one side of commercial workbenches, Interior Shade System, Programmable Watering System, and the only Greenhouse Sink in the Industry. From the integrated base to the built-in rainwater gutter system, to the automatic roof vent opener and the newly redesigned hinged double doors with an opening of almost 6ft high x 4 ft wide ensures your enjoyment of the MONT Greenhouse for years to come.

The MONT Greenhouse also offers the ability to grow as your needs grow with the 4ft extension kit that can be purchased anytime in the future. You get what you pay for and with the MONT Greenhouse, this rings true. The MONT Greenhouse comes with a 10-year warranty on the frame and Polycarbonate, the strongest in the industry. For the gardener that is looking for a mid-priced greenhouse system that will supply years of hassle-free indoor gardening, this is the greenhouse for you.

The Premium MONT Greenhouse includes:

Quick assembly construction

Integrated flush base design; High impact UV stable 8mm twin-wall polycarbonate walls and roof; Heavy duty extruded aluminum frame construction; Black electrostatically painted frame

The sidewall is 4 ft 10 in.

2ft x 2ft roof vent with automatic opener Integrated dual rainwater gutter system

Large 4FT x 6FT wide door opening

Hinged Lockable Double Doors.

Twist & Lock single bolt makes assembly quick and easy.

Expandable ability to expand greenhouse in 4ft increments as needs grow

What's included / What's in the box?

  • All Aluminum framework
  • All PC panels
  • Workbench
  • Interior shade cloth
  • Watering system
  • Sink
  • Hardware
  • Instruction manual
  • Screwdriver and wrench

Care Instructions: soapy water

Full 10 yr. warranty (strongest in the industry).

Proudly designed and made in the USA!

DIY assembly construction, Integrated flush base design.

Allow for a FULL weekend to fully assemble (ground prep NOT included). Two people suggested for assembly. Actual time to construct will depend on size of the greenhouse and skill levels. Manual is fully illustrated.

Warranty: 10 yr limited warranty

Country of Origin: USA

Riverstone MONT Premium Greenhouse Overview

INSTALLATION OVERVIEW VIDEO

FULL INSTALLATION VIDEO

Mont Greenhouse Assembly Instructions
WARRANTY

10 Year Limited Warranty


Why This Greenhouse Is Worth Buying From Us

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M
Matt
The MONT greenhouse premium 8x12 remorse

It will be 3 weeks and the greenhouse is not complete due to still waiting on damaged parts. Luckily the last parts to replace are the vents, so the build is 90% complete. Mygreenhousestore did nothing but collect money, so this is likely the 1st and last time I shop. Overall the MONT is overpriced and the premium package should be avoided. The irrigation hose is very cheap, arrived with a bad crimp from it being too stiff to fit in that box and they won't replace it. It's so cheap that if the timer works I'll keep that but the rest will be the 1st to get upgraded. It's not even worth installing and I'll go for a drip system. Save your money and buy those "premium" pieces later. Assembly is not terrible, but it's not good either. The manual let's you guessing, the online help is only sometimes helpful and there is no information on these greenhouses. Imagine no one on YouTube owns one in 2025?! I built a 12x14 wood shed from hand drawn plans and YouTube vids. It was more time consuming to design and get materials etc, but was easier to build. This is the 1st and last kit I buy. At 3k it would be good, at 5k it's a crime. Disappointed before I even get to use it. It should be returned but you have to unbox everything to look for damage and there will be, so make sure you do this... But then can forget about reboxing 10,000 parts in 8,9,10 boxes and trying to return. This process is designed to defeat you.

Hi Matt,

Thank you very much for taking the time to give such a thorough and honest review about your experience. Please accept our apologies for the frustration and disappointment you have had with your MONT 8x12 Premium Greenhouse.

We appreciate your candid feedback regarding the premium package components, especially the irrigation hose, manual quality, and the overall value proposition. We sell these products based on the manufacturerโ€™s specifications, but your experience with the cheap components and poor manual guidance is critical information. We are escalating this specific, detailed feedback directly to the manufacturer to advocate for product improvements and clearer documentation. In addition, we have issued a $100 credit back to your card, to cover your costs in either buying a replacement hose or substituting a drip irrigation setup.

Thank you again for your honest, albeit difficult, feedback.

Questions & Answers

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  • What is the sidewall height on the mont premium

    The sidewall height is 4โ€™ 10โ€.

  • I spoke to Becky about adding an extra roof window and a side window on this greenhouse

    Yes, you may add a louver window and an additional automatic roof window.ย  Please click on the links and see more details.