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Questions? Call Us at 1-800-540-9051

Riverstone MONT Black Greenhouse

Save 9% Save 14%
Original price $3,649.99
Original price $3,649.99 - Original price $7,599.00
Original price $3,649.99
Current price $ 3,149 .00
$3,149.00 - $6,999.00
Current price $ 3,149 .00

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Find a better price? We will beat it!If you find this item cheaper elsewhere (price plus shipping and taxes), please email or call us.*We do not price match past orders, local stores, prices below our costs, and the item must be in stock.

Find a better price? We will beat it!

If you find this item cheaper elsewhere (price plus shipping and taxes), please email or call us.

*We do not price match past orders, local stores, prices below our costs, and the item must be in stock.

Riverstone MONT Black Greenhouse

Panels/Frame: 8 mm twin-wall polycarbonate • extruded aluminum (black, powder-coated) Sizes & Expansion: 8×8′ • 8×12′ • 8×16′ • 8×20′ • 8×24′; add 4′ sections (MONT-4-BK) Ventilation: (2) automatic roof vents ≈2′×2′ each Wind/Snow: ~65 MPH • ~24 lb/ft² Made/Warranty: USA-made • 10-year limited Lead time/Ship: 3–5 business days • FedEx Ground

Looking for a quality structure that will stand the test of time? Look no further than the Riverstone Industries Monticello Greenhouse! It is constructed with the highest quality US-grade material, unlike many of the other hobby greenhouses on the market today, which are constructed from thinner and more fragile materials. Additionally, since it uses 8mm twin-wall polycarbonate for its walls and roofing – which is a standard issue in most commercial-grade greenhouses – you won't be sacrificing longevity. Make an investment in Riverstone Industries' Monticello Greenhouse and experience both the attractive appeal of your outdoor space and the reliable protection it provides for your plants.

 

LEAD TIME & SHIPPING

*3-5 business days. Greenhouse normally ships via FedEx Ground.

Benefits

  • Healthier plants year-round: 2 automatic roof vents open and close based on temperature, providing steady ventilation.
  • Efficient heat control: The A-frame roof design helps hot air escape efficiently to avoid overheating your crops.
  • Rust- and rot-proof materials: Polycarbonate panels and aluminum framing resist corrosion and decay, even in wet climates.
  • Long lifespan: 8mm twin-wall construction is rated for commercial use, ensuring years of protection without warping or cracking.

Features

  • Heavy-duty extruded aluminum frame with black powder-coated finish
  • 8mm commercial-grade twin-wall polycarbonate roof and sidewalls
  • 2 automatic roof vents (2 ft. x 2 ft.)
  • Flush-mounted base for lower threshold entry
  • A-frame roof with built-in joists for hanging baskets or tools
  • Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches
  • No rust: all-aluminum frame and polycarbonate build
  • 10-year limited warranty (one of the strongest in the industry)
  • Expandable in 4 ft. sections using the MONT-4-BK expansion kit
  • Pre-cut and pre-drilled for easier assembly; illustrated instructions included
  • Snow load rated to 24 lbs/sq. ft.
  • Wind load rated to 65 MPH
  • Ships in 5 boxes: 4 (58" x 27" x 6") and 1 (68" x 27" x 3")
  • Includes upgraded door and vent locks for harsh weather protection

Optional Add-ons:

Extra Roof Vent - Crafted from quality aluminum and polycarbonate, designed to be installed quickly in 30 minutes or less. It also comes with a 10-year warranty! Plus, it has an automatic electric opener so that you don't need additional vents. Plug it in and enjoy improved airflow within your greenhouse space.

Mont greenhouse door Door Kit - you can keep your greenhouse temperature consistent and comfortable year-round, even during cold winter months. Furthermore, the doors provide better access to your plants, allowing you to take care of them with ease and efficiency. The kit includes two robust aluminum frames that provide a strong foundation for both doors as well as all hardware required for installation, including fasteners and an instruction manual. With the MONT Door Kit, you can easily add extra protection to your greenhouse while significantly increasing usability.
RSI work bench kit Work Bench kit -  The design is simple and unique, it can be installed either during initial construction or at a later time. 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 four feet off the ground).
RSI internal shade cloth Internal Shade Cloth - Its garden-friendly design makes cooling your greenhouse down a breeze; easily dispenses heat loads by simply gliding the shade. Riverstone Shade Cloth Kit is so easy to use, no special setup is needed—just take it out of the box and you're ready to get growing! Unlike other shade kits, our product goes on the inside, so there's no interference with side windows or roof vent performance.
RSI heating system Heating System - The RSI greenhouse heating system is a reliable and efficient way to maintain the temperature of your building or greenhouse. Its ceiling-mounted design allows maximum airflow while also providing 360° of direction control. The adjustable louvers let you manage the severity of the heat flow and direct it toward specific areas as needed. With its high-efficiency burner, you can rest assured that your heating needs are taken care of for long periods of time.
RSI Propane Gas heater RSI Radiant Heating Propane Gas System - designed to deliver direct heat and allow for the temperature to be maintained over long periods of time. The gas furnace heater is ventless and runs off LP (propane) gas. The electric starter and thermostatically controlled heat output make adjusting to the correct temperature easy.

Flooring Kit - Create a safe and stylish surface for your greenhouse with our customizable flooring kit. Featuring breakoff square segments from 100% regenerated polypropylene, this interlocking modular system provides an anti-slip walking experience even under heels! With six available colors – green, gray, blue, black, brown & tan – the 41 tiles included in each set will perfectly match any outdoor décor.

Louver Window - Its 18" square size, non-rusting extruded aluminum build, and expertly crafted dual seals help keep insects out while allowing perfect ventilation levels due to its intelligent solar-powered opener that expands or contracts based on temperature changes for automatic opening and closing action.

Overhead Automatic Watering System - The 16 ft. long hose, 3 weighted sprinkler heads, and digital timer provide quality irrigation for your plants—no manual labor necessary! This commercial-grade product is designed with safety in mind; its specific anti-mold/anti-bacterial construction ensures years of reliable use without worry about contamination. Quick installation sets up automatic scheduling cycles you need to accommodate different climates year-round while enjoying peace of mind knowing it comes with a 5-year warranty.

Sink System - Riverstone's tall and large outdoor potting sink is an ideal solution for gardeners, providing a handy space within reach to clean vegetables, and tools or rinse off dirty hands. It is equipped with a mounting kit which makes it suitable for both indoor and outdoor greenhouse uses. Furthermore, its detachable hose reel can extend up to 200 feet of the gardening range.

Solar Powered Ventilation Kit - This kit allows you to circulate air through your greenhouse and maintain a comfortable temperature without relying on an electrical connection. Included in every package are a 40 amp solar panel, 16" commercial exhaust fan, aluminum 5-louvered cover, and thermostat. You will also have peace of mind from its 3-year warranty and easy installation process.

Greenhouse Comparison

Model Monticello Black Greenhouse
Riverstone Industries Monticello Black Greenhouse
Monticello Premium Greenhouse
Riverstone Industries Monticello Premium Greenhouse
Monticello Mojave Greenhouse
Riverstone Industries Monticello Mojave Greenhouse
Monticello MOHEAT Edition Greenhouse
Riverstone Industries Monticello MOHEAT Edition Greenhouse
Monticello Growers Edition Greenhouse
Riverstone Industries Monticello Growers Edition Greenhouse
Roof Vent 2ft x 2ft 2ft x 2ft 2ft x 2ft 2 - 2ft x 2ft 2ft x 2ft
Snow Load Capacity 24 lbs/sq. ft. 24 lbs/sq. ft. 24 lbs/sq. ft. 24 lbs/sq. ft. 24 lbs/sq. ft.
Wind Load 65 MPH 65 MPH 65 MPH 65 MPH 65 MPH
Work Bench No Yes Yes Yes Yes
Interior Shade No Yes No No No
Programmable Watering System No Yes Yes Yes No
Sink System No Yes Yes Yes No
Solar Ventilation System No No Yes Yes No
Vegi-Bee Pollinator No No Yes Yes No
Radiant Heating (Propane) No No No Yes Yes
Genesis Drip Irrigation No No No No Yes
Roof Type Tinted Tinted Tinted Tinted Light Diffusing
Sizes Available 8x8', 8x12', 8x16', 8x20', 8x24' Same 8x12' and up 8x12' and up 8x8' to 8x24'
Warranty 10 Years 10 Years 10 Years 10 Years 15 Years

*Proudly designed and made in the USA! Allow for a FULL weekend to Fully Assemble (ground prep included). Two people suggested assembly. The Manual is fully illustrated.

SPECIFICATIONS

Material Aluminum/ Polycarbonate
Assembly Required Yes
Greenhouse Style Walk in Greenhouse
Number of Vent Openings 2
Floor Options Without Floor
Greenhouse Features Door latch, Double door, Gutters, Lockable door/gate latch, Vents, Walk-in
Warranty 10 year

Assembly Guide

DOWNLOADS

Assembly Manual

8' x 8' Download  8' x 12' Download  8' x 20' Download  8' x 24' Download

Warranty

Download

Frequently Asked Questions

Is the Monticello Black Greenhouse made in the USA?
Yes—Monticello greenhouses are designed and manufactured in the USA using commercial-grade extruded aluminum and twin-wall polycarbonate.
What kind of panels does it use?
8 mm twin-wall polycarbonate (UV-stable) for durability and insulation.
What are the wind and snow ratings?
Rated for ~65 MPH wind and ~24 lbs/ft² snow when closed; if unheated in winter, remove snow buildup promptly.
What vents are included?
Two automatic roof vents, each approximately 2 ft × 2 ft.
What are the door dimensions?
Double hinged doors, about 4 ft wide × 6 ft high, with lockable latches.
How do I anchor it?
Use the integrated flush-mount base to anchor to a prepared slab, deck, or pressure-treated wood platform (level and square).
Can I expand it later?
Yes—add 4 ft extension kits to lengthen the greenhouse up to 24 ft.
What’s the warranty?
Limited 10-year greenhouse warranty (manufacturer).
What’s included vs. optional?
Includes aluminum frame, 8 mm panels, two auto roof vents, gutters, double doors, and interior joists; benches, shade cloth, extra vents, irrigation, and solar ventilation are optional add-ons.
How is it shipped and how long does it take?
Typical lead time is a few business days; ships boxed via ground/freight. Have two people available to assist with unloading.

QUESTIONS & ANSWERS

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Don't Take Our Word For it! Here's What Our Customers Think:

Hats off to Homestead Supplier for superior customer service - these guys go above and beyond to answer all my questions. We purchased the Beach House shed for some extra storage but ended up using it as a backyard playhouse for the kids :). Now we have to buy another shed lol... The shed is great, sturdy, and would recommend to others.

- Sam B.

I found the buying experience to be far better than expected. Very easy to order, received immediate order confirmation, excellent customer service, order showed earlier than expected and in excellent condition. Would definitely recommend

- Dean G.

After 7 months of waiting for our pool to be completed, we are thrilled to have gotten our new shed built. It perfectly completes our backyard renovation. We love it! The instructions were clear, and the building is sturdy. We’ve had a number of inquiries about who we bought our shed kit from.

- Karen E.

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We are located in central California and sell online only.

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