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Riverstone MONT Greenhouse

$3,099.99$6,149.99

  • US grade, stronger, thicker aluminum
  • 8mm twin-wall polycarbonate
  • Simple set-up without the need for concrete
  • Fast & smooth shipping in 3-5 days
  • Made in the USA

Act Now: Prices will increase on April 1st, 2024. 

Riverstone MONT Greenhouse

The MONT Greenhouse is a robust, practical solution designed with the dedicated gardener in mind. Made in the USA, this premium greenhouse is designed to elevate your gardening experience to new heights, combining strength, functionality, and versatility in one package.

Whether you’re an experienced green thumb or an enthusiastic beginner, the Riverstone MONT Greenhouse is engineered to enhance your growing season, offering a versatile space where plants can flourish.

Just a heads-up: MONT used to go by the name Monticello. That’s right – the name got spruced up, but the greenhouses are still the same (or improved) garden havens you know and cherish. If Monticello Greenhouse rings a bell, you’re in the right place; welcome to the new era of MONT!

Key Features & Benefits of the Riverstone MONT Greenhouse

Versatile Sizing: Available in sizes ranging from 8′ x 8′ to 8′ x 24′, the MONT Greenhouse can accommodate gardens of various scales. Plus, it’s designed to expand in 4-foot sections, providing flexibility as your greenhouse gardening needs grow.

US-Grade Construction: Opting for a MONT Greenhouse means choosing a product that’s built right here in the USA with the highest quality extruded aluminum – using 40 lbs more than what’s found in the average imported greenhouse.

Roof joint for MONT greenhouse

This superior construction ensures you receive a greenhouse far more robust than those made with the brittle and thinner aluminum commonly used abroad. Such strength is crucial, as a sturdier framework is better equipped to handle heavier snow loads and withstand stronger winds.

Front view of a Riverstone MONT Greenhouse

Each MONT Greenhouse is finished with an electrostatic paint for exceptional weather resistance, offering a level of durability and reliability that secures your gardening projects against the elements.

When you select a MONT Greenhouse, you’re not just buying a structure; you’re investing in a resilient haven for your plants, crafted to offer enduring support through every season.

Easy Setup: The greenhouse features an integrated base, allowing for straightforward setup on any level surface without the need for pouring concrete, simplifying the installation process (and reducing the installation cost).

MONT greenhouse kit assembly with wrench

Advanced Polycarbonate Glazing: The MONT Greenhouse distinguishes itself with its 8mm twin-wall polycarbonate glazing, a feature inspired by commercial greenhouse standards for unmatched durability and climate control. While others may opt for thinner, less costly materials, Riverstone Industries commits to this robust thickness to ensure your plants enjoy the best possible environment.

This choice mirrors the logic behind double-pane windows: it’s all about optimizing insulation. The result? A greenhouse that stays cooler in the sweltering summer heat and retains warmth during the chilly winter months.

This high-impact, UV-stable glazing not only shields your plants from damaging UV rays but also maintains a consistent temperature year-round for optimal growth.

Large healthy pepper plant growing inside a Riverstone MONT Greenhouse

Enhanced Security: New door and window locks have been introduced to offer increased protection against stronger winds, ensuring your greenhouse remains secure in various weather conditions.

Close-up of locked and unlocked MONT Greenhouse Door Locking Mechanism with a view of the whole door in the background
MONT roof vent with detail views of the locks on each side as well as the cotter pin in the center by the auto opener

Fast Shipping & Warranty: No need to wait for weeks. Enjoy fast and smooth delivery via FedEx Ground (ships within 3-5 days)! Backed by a 10-year warranty on the frame and polycarbonate glazing, you can have peace of mind with one of the strongest warranties in the industry.

Additional features:

  • Above-Average Interior Height: The 7.5′ peak height greatly helps in displacing heat, while also allowing tall gardeners to stand straight up inside their greenhouse.
  • Innovative Assembly: Featuring a patent-pending Twist & Lock construction alongside a rigid “ribbed” design, assembling your greenhouse is faster and easier than ever, requiring minimal tools and effort.
  • Optimal Ventilation: Featuring 2′ x 2′ roof vents with automatic openers, the MONT Greenhouse ensures great air circulation without the need for electricity, keeping your plants healthy and thriving.
  • Accessibility: A large double door (4′ wide x 6′ high) provides easy access for garden equipment, making planting and maintenance tasks more convenient. The door is hinged and lockable, offering added security.
  • Efficient Water Management: An integrated dual gutter system simplifies rainwater collection, allowing for efficient water management and sustainability in your gardening practices.

The Riverstone MONT Greenhouse is a gateway to a more fruitful and enjoyable gardening journey. Whether you’re a seasoned gardener or just starting out, this greenhouse offers the quality, functionality, and flexibility you need to succeed. Elevate your gardening today with the MONT Greenhouse and turn your green thumb dreams into reality.

Spotlight: MONT in Utah

Note: These are the old doors. Now, the MONT comes with hinged doors.

Product Details

  • US grade, stronger, thicker extruded aluminum (electrostatically painted) 
  • High-impact, UV-stable polycarbonate glazing
  • Glazing material: 8mm twin-wall polycarbonate
  • Simple setup: Integrated base allows for direct set-up on a level surface (no need to pour concrete)
  • Faster and easier assembly: Patent-pending Twist & Lock construction, as well as rigid “ribbed” design for interlocking the pieces
  • Available in various sizes from 8′ x 8′ to 8′ x 24′
  • Expand in 4-foot sections when you outgrow your greenhouse garden
  • NEW door and window locks for increased protection from stronger winds
  • Roof vents (2′ x 2′) operate with automatic openers: for great air circulation without the need for electricity
  • Large double door (4′ wide x 6′ high) for easy access with garden equipment
  • Door is hinged and lockable (not with key)
  • Foundation frame: Integrated flush base design for direct anchoring to the ground or deck
  • Integrated dual gutter system for easy rainwater collection
  • Fast & smooth shipping: Trouble-free delivery via FedEx Ground within 3-5 days
  • Warranty: 10 years on frame and polycarbonate (strongest in the industry)
  • Made in the USA
  • Assembly: Allow for a FULL weekend to fully assemble (ground prep NOT included). A minimum of 2 people for assembly, but 3-4 is recommended. The actual time to construct will depend on the size of the greenhouse and skill levels.

What is included?

Included in every MONT Greenhouse: All aluminum framework, all polycarbonate panels, 1x set of hinged double doors (assembled), roof vent(s) with auto openers (number depends on the greenhouse size – see table below), hardware, anchoring hardware, Instruction manual, screwdriver, and wrench.

Size No. of roof vents with auto openers
MONT 8×8 1
MONT 8×12 2
MONT 8×16 3
MONT 8×20 4
MONT 8×24 5

Specifications

  • Frame material: Extruded aluminum
  • Glazing material: 8mm twin-wall polycarbonate
  • Frame Color: Black
  • Stem wall: Not supported by the manufacturer
  • Sidewall height: 58″ (4.8′)
  • Peak height (interior): 7.5′
  • Dimensions:
    • 8×8: 101″ wide x 101″ long x 90″ high
    • 8×12: 101″ wide x 149.75″ long x 90″ high
    • 8×16: 101″ wide x 198.25″ long x 90″ high
    • 8×20: 101″ wide x 247″ long x 90″ high
    • 8×24: 101″ wide x 295.75″ long x 90″ high
  • Floor space: 
    • 8×8: 65 sq. ft.
    • 8×12: 99 sq. ft.
    • 8×16: 132 sq. ft.
    • 8×20: 165 sq. ft.
    • 8×24: 195 sq. ft.

Packages

Looking for a ready-to-start package or specific features for your local climate or growing needs? Have a look at these packages!

SPECIAL EDITION: Only on Greenhouse Emporium, you can find this special package of the MONT Greenhouse. It comes in our most popular size – 8×16 and is loaded with helpful accessories to get you started right away: 2x sets of hinged double doors (for better access), 3x roof vents with automatic openers, 1x foldable, full-length workbench (2ft deep x 30in high), a programmable watering system, and a VegiBee plant pollinator. Click here to go to the MONT Special Edition!

PREMIUM PACKAGE: If you want to start with some accessories right away, you should check out the MONT Premium. It comes with a workbench system for one side, a programmable watering system, a sink, and an interior shade cloth system. Click here to go to MONT Premium!

GROWERS PACKAGE: If you want to grow cannabis, the MONT Growers Edition is best for you. It has light defusing panels so that the light distribution is perfect and your privacy is protected at the same time. The Growers Package comes with an electric ventilation system, a workbench system for one side, a commercial heater (17,000 BTU), and a programmable drip irrigation system. Click here to go to MONT Growers!

MOHAVE PACKAGE: If you are living in the desert or a similar environment, you should have a look at the MONT Mojave. It comes with tinted roof panels to give your plants more protection from the scorching sun. It also comes with an effective solar ventilation system, a programmable watering system, a sink, an interior shade cloth system, and the VegiBee pollinator. Click here to go to the MONT Mojave Edition!

MOHEAT PACKAGE: Similar to the Mojave Edition, the Moheat is made for hot climates and comes with all the accessories that the Mojave has. The added bonus of the Moheat is the portable propane heater because nighttime temperatures can fall drastically in the desert. Click here to go to the MONT Moheat Package!

LIFE CYCLE PACKAGE: This is an accessory-packed edition that sets you up with everything you need. The MONT 8×8 Life Cycle Edition includes the base greenhouse kit. It also comes with a workbench, programmable watering system, sink, interior shade cloth, MAZE Composter Starter Pack, and the Eden V-Shaped Raised Garden Bed. Click here to go to MONT 8×8 Life Cycle! 

FAQs

Is the frame anodized?

Yes & No. The aluminum frame is anodized. However, the black frame is electrostatically painted.

Is the black paint powdercoated?

No, the black paint is electrostatically applied which is stronger than powder coating. It is very difficult to scratch and should not fade dramatically. Riverstone Industries guarantees it for 10 years.

Is the aluminum frame cooler than the black frame?

Yes, the aluminum frame is on average about 7 degrees cooler than the black.

Can the MONT be attached to a concrete pad? If so what are the dimensions needed for the concrete pad?

Yes, you can use a concrete pad. Riverstone Industries recommends that you add 3 – 4 inchs to the pad on all sides. For Example: The 8ft x 8ft (exact size of 8.1ft x 8.1ft) would need a concrete pad of 8.4ft x 8.4ft. Note: Riverstone Industries does not provide concrete screws, you will need to buy these from your local hardware store.

What tools do I need for the assembly or is everything included?

Not everything is included. Here is a list of tools you will need and items included:

  • Work gloves
  • Safety goggles
  • Spirit level
  • Tape measure
  • Step ladder
  • Clear silicone caulk tube
  • 23 1/8 inch spacer (included)
  • 7/16 wrench (included)
  • Philips screwdriver (included)
  • Flat screwdriver (included)
  • 5-foot bungee cord (included)

Can I extend the MONT Greenhouse later?

Yes, it is expandable in 4ft increments.

We live in a seismically active area south of San Francisco. I’d like to install the greenhouse on a hill. Is this the best greenhouse for my conditions?

MONTs are very sturdy greenhouses. However, the greenhouses are not tested for earthquakes. What we can suggest for you to do is to check the bolts and make sure everything is tightened after an earthquake or from time to time. The panels won’t pop out unless the frame is loose. The channels are made to fit the Polycarbonate snugly.

What does the ventilation fan do versus the auto openers in the roof?

Automatic vent openers are self-contained units which require no electricity. It is a temperature-sensitive device that automatically opens and closes a roof vent. So, they release heat and they basically require wind to make the air flow through the greenhouse. The powered ventilation fan gives you more control. It removes excess heat by creating air movement throughout the greenhouse. However, it’s just a fan, not an AC unit. So, on very hot days, you’ll still experience higher temperatures inside your greenhouse.

Do the doors swing out or slide to the side? What is the door width?

It’s a hinged door so it swings. The door opening is 4ft x 6ft.

Where does it ship from?

Georgia, USA