



















Riverstone MONT Greenhouse
Riverstone MONT Black Greenhouse
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. |
![]() |
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. |
![]() |
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). |
![]() |
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. |
![]() |
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 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 | |||||
|---|---|---|---|---|---|
| Panels / Frame Finish | 8 mm twin-wall polycarbonate • extruded aluminum (black, powder-coated) | 8 mm twin-wall polycarbonate • extruded aluminum | 8 mm twin-wall polycarbonate • extruded aluminum | 8 mm twin-wall polycarbonate • extruded aluminum | 8 mm twin-wall polycarbonate • extruded aluminum |
| Door Type & Opening | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches |
| Expansion | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) |
| Roof Vent | 2ft x 2ft | 2ft x 2ft | 2ft x 2ft | 2 - 2ft x 2ft | 2ft x 2ft |
| Roof Type | Tinted | Tinted | Tinted | Tinted | Light Diffusing |
| Gutters / Base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base |
| 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 |
| Radiant Heating (Propane) | No | No | No | Yes | Yes |
| Genesis Drip Irrigation | No | No | No | No | Yes |
| Wind Load | 65 MPH | 65 MPH | 65 MPH | 65 MPH | 65 MPH |
| Snow Load Capacity | 24 lbs/sq. ft. | 24 lbs/sq. ft. | 24 lbs/sq. ft. | 24 lbs/sq. ft. | 24 lbs/sq. ft. |
| Sizes Available | 8x8', 8x12', 8x16', 8x20', 8x24' | 8x8', 8x12', 8x16', 8x20', 8x24' | 8x12', 8x16',8x20', 8x24' | 8x12', 8x16',8x20', 8x24' | 8x8', 8x12', 8x16', 8x20', 8x24' |
| Country of Origin | USA-made | USA-made | USA-made | USA-made | USA-made |
| Lead Time / Ship | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground |
| Warranty — Frame/Structure | 10 Years | 10 Years | 10 Years | 10 Years | 15 Years |
| Warranty — Panels/Extras | 10 Years | 10 Years | 10 Years | 10 Years | 15 Years |
Compare Mont vs Similar Greenhouses (Other Brands)
| Feature | |||||
|---|---|---|---|---|---|
| Exterior / Frame | 8 mm twin-wall polycarbonate • heavy-duty extruded aluminum (black, powder-coated) | 10 mm twin-wall polycarbonate • heavy-duty powder-coated aluminum | 7/16″ LP® SmartSide® siding • wood framing | LP® SmartSide® siding • wood framing | Western Red Cedar framing |
| Roof Panels / Type | Twin-wall polycarbonate (tinted) | 10 mm twin-wall polycarbonate | Corrugated polycarbonate roofing | SunSky® corrugated polycarbonate roof | 6 mm Polygal twin-wall polycarbonate roof |
| Primary Size Compared | 8×12′ | 8×12′ | 8×12′ | 8×12′ | 8×12′ |
| All Available Sizes |
8×8′ 8×12′ 8×16′ 8×20′ 8×24′
|
8×8′ 8×12′ 8×16′ 10×12′ 10×14′ 10×16′
|
8×8′ 8×10′ 8×12′ 10×12′ 10×14′ 10×16′ 12×16′ 12×20′ 12×24′
|
||
| Doors | Double hinged doors (≈4′ W × 6′ H), lockable | Double doors (model-standard) | Working windows with tempered glass; door(s) vary by size/model | Shed-style door(s) | Dutch door (top/bottom), cedar |
| Windows / Vents | (2) automatic roof vents ≈2′ × 2′ each | Roof vents (qty varies by size) | Working tempered-glass windows; ventilation via operable windows | Operable windows; venting via roof material & windows | (2) heat-activated roof vents + side wall vents |
| Wind / Snow | ~65 MPH • ~24 lb/ft² | Up to ~76 MPH • ~25 lb/ft² (Elite series) | Not published | ~105 MPH | Not published |
| Warranty | 10-year limited | Lifetime frame • 10-year panels | Manufacturer limited (LP® SmartSide® component warranty applies) | Manufacturer limited (LP® SmartSide® component warranty applies) | Manufacturer limited (see product spec sheet) |
*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?
What kind of panels does it use?
What are the wind and snow ratings?
What vents are included?
What are the door dimensions?
How do I anchor it?
Can I expand it later?
What’s the warranty?
What’s included vs. optional?
How is it shipped and how long does it take?
Original: $3,149.99
-70%$3,149.99
$945.00Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Riverstone MONT Black Greenhouse
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. |
![]() |
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. |
![]() |
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). |
![]() |
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. |
![]() |
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 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 | |||||
|---|---|---|---|---|---|
| Panels / Frame Finish | 8 mm twin-wall polycarbonate • extruded aluminum (black, powder-coated) | 8 mm twin-wall polycarbonate • extruded aluminum | 8 mm twin-wall polycarbonate • extruded aluminum | 8 mm twin-wall polycarbonate • extruded aluminum | 8 mm twin-wall polycarbonate • extruded aluminum |
| Door Type & Opening | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches | Double hinged doors (4 ft. wide x 6 ft. high) with lockable latches |
| Expansion | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) | Adds 4′ sections (MONT-4-BK) |
| Roof Vent | 2ft x 2ft | 2ft x 2ft | 2ft x 2ft | 2 - 2ft x 2ft | 2ft x 2ft |
| Roof Type | Tinted | Tinted | Tinted | Tinted | Light Diffusing |
| Gutters / Base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base | Integrated gutters • flush-mount base |
| 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 |
| Radiant Heating (Propane) | No | No | No | Yes | Yes |
| Genesis Drip Irrigation | No | No | No | No | Yes |
| Wind Load | 65 MPH | 65 MPH | 65 MPH | 65 MPH | 65 MPH |
| Snow Load Capacity | 24 lbs/sq. ft. | 24 lbs/sq. ft. | 24 lbs/sq. ft. | 24 lbs/sq. ft. | 24 lbs/sq. ft. |
| Sizes Available | 8x8', 8x12', 8x16', 8x20', 8x24' | 8x8', 8x12', 8x16', 8x20', 8x24' | 8x12', 8x16',8x20', 8x24' | 8x12', 8x16',8x20', 8x24' | 8x8', 8x12', 8x16', 8x20', 8x24' |
| Country of Origin | USA-made | USA-made | USA-made | USA-made | USA-made |
| Lead Time / Ship | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground | 3–5 business days • FedEx Ground |
| Warranty — Frame/Structure | 10 Years | 10 Years | 10 Years | 10 Years | 15 Years |
| Warranty — Panels/Extras | 10 Years | 10 Years | 10 Years | 10 Years | 15 Years |
Compare Mont vs Similar Greenhouses (Other Brands)
| Feature | |||||
|---|---|---|---|---|---|
| Exterior / Frame | 8 mm twin-wall polycarbonate • heavy-duty extruded aluminum (black, powder-coated) | 10 mm twin-wall polycarbonate • heavy-duty powder-coated aluminum | 7/16″ LP® SmartSide® siding • wood framing | LP® SmartSide® siding • wood framing | Western Red Cedar framing |
| Roof Panels / Type | Twin-wall polycarbonate (tinted) | 10 mm twin-wall polycarbonate | Corrugated polycarbonate roofing | SunSky® corrugated polycarbonate roof | 6 mm Polygal twin-wall polycarbonate roof |
| Primary Size Compared | 8×12′ | 8×12′ | 8×12′ | 8×12′ | 8×12′ |
| All Available Sizes |
8×8′ 8×12′ 8×16′ 8×20′ 8×24′
|
8×8′ 8×12′ 8×16′ 10×12′ 10×14′ 10×16′
|
8×8′ 8×10′ 8×12′ 10×12′ 10×14′ 10×16′ 12×16′ 12×20′ 12×24′
|
||
| Doors | Double hinged doors (≈4′ W × 6′ H), lockable | Double doors (model-standard) | Working windows with tempered glass; door(s) vary by size/model | Shed-style door(s) | Dutch door (top/bottom), cedar |
| Windows / Vents | (2) automatic roof vents ≈2′ × 2′ each | Roof vents (qty varies by size) | Working tempered-glass windows; ventilation via operable windows | Operable windows; venting via roof material & windows | (2) heat-activated roof vents + side wall vents |
| Wind / Snow | ~65 MPH • ~24 lb/ft² | Up to ~76 MPH • ~25 lb/ft² (Elite series) | Not published | ~105 MPH | Not published |
| Warranty | 10-year limited | Lifetime frame • 10-year panels | Manufacturer limited (LP® SmartSide® component warranty applies) | Manufacturer limited (LP® SmartSide® component warranty applies) | Manufacturer limited (see product spec sheet) |
*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?
What kind of panels does it use?
What are the wind and snow ratings?
What vents are included?
What are the door dimensions?
How do I anchor it?
Can I expand it later?
What’s the warranty?
What’s included vs. optional?
How is it shipped and how long does it take?




























