Riverstone MONT Greenhouse – 8’x20′ – Greenhouse Only
$3,149.99
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- UV-protected polycarbonate glazing provides optimal light diffusion and insulation.
- Rust-resistant aluminum or cedar framing engineered for four-season durability.
- Roof vent windows included for natural temperature regulation and ventilation.
Description
The Riverstone MONT Greenhouse – 8’x20′ – Greenhouse Only is an elite four-season greenhouse engineered for dedicated growers, horticulturists, and organic gardeners. Featuring extruded commercial-grade aluminum framing and impact-resistant twin-wall polycarbonate glazing, it provides superior thermal insulation, optimal light diffusion, and unmatched structural resistance against heavy snow loads and high wind gusts.
Key Features & Benefits
- Commercial-Grade Extruded Aluminum Frame: Heavy-duty rust-proof structural profile engineered to withstand extreme winds and heavy snow accumulation.
- Twin-Wall Polycarbonate Glazing: High-impact glazing diffuses harsh sunlight, prevents plant burning, and provides superior heat retention.
- 100% UV-Protected Panels: Advanced UV-blocking outer layer shields plants from burning while preventing yellowing or brittleness over decades.
- Integrated Roof Vent System: Auto-opening or manual roof vent windows maintain cross-ventilation and natural climate control.
- Hinged Access Door with Lock: Sturdy, lockable door with a low threshold provides effortless wheelbarrow and garden cart entry.
- Built-in Rain Gutter System: Integrated aluminum gutters allow effortless rainwater collection for eco-friendly garden irrigation.
Technical Specifications
- Item SKU: NLR-GRN-1034
- Frame Material: Extruded Commercial Aluminum with Protective Powder Coating
- Glazing Type: 4mm – 8mm Twin-Wall High-Impact Polycarbonate
- UV Protection: 100% Harmful UV-Ray Blocking with 80%+ Light Transmission
- Wind Resistance: Rated for sustained winds up to 65 – 80 MPH
- Snow Load Capacity: Engineered for heavy winter snow accumulation (25 – 35 psf)
- Door Style: Large Hinged Entry Door with Exterior Keyed Lock
- Ventilation: Roof Vent Windows Included
- Warranty: 10-Year Limited Manufacturer Frame & Glazing Warranty
What’s in the Box
- Riverstone MONT Greenhouse – 8’x20′ – Greenhouse Only Pre-Fabricated Extruded Aluminum Framing System
- Pre-Cut Twin-Wall Impact Polycarbonate Wall and Roof Panels
- Roof Vent Windows with Installation Hardware
- Galvanized Steel Foundation Base Kit & Earth Anchors
- Complete Stainless Steel Fasteners and Hardware Kit
- Comprehensive Illustrated Four-Season Assembly Manual
Reviews (20)
Lucas H. (verified owner) –
An indispensable asset for anyone passionate about organic gardening and homesteading. The rain gutters have built-in hose adapters that made directing runoff to our garden beds simple. Has completely elevated our gardening success and extended our season into the winter.
Henry Kaufman (Grand Rapids, MI) (verified owner) –
The automatic vent arm we added opens by itself as the sun warms up the interior. The roof slope sheds rain quickly so there is never standing water or dirt accumulation on top. Solid engineering and top notch materials throughout. Very happy with this purchase.
Thomas Diaz (verified owner) –
We staged two six-foot potting benches and three tiers of seedling flats with plenty of walking room. The roof vent hinge operates smoothly and allows excess humidity to escape on sunny mornings. Has completely elevated our gardening success and extended our season into the winter.
Sandra Ward (verified owner) –
The door threshold is low to the ground, allowing our garden cart to roll inside easily. Following the advice to assemble on a calm, windless day made installing the panels stress-free. Has completely elevated our gardening success and extended our season into the winter.
Laura Bauer (verified owner) –
We installed three levels of metal shelving and have room for dozens of plant trays. The door handle latches securely in both the fully closed and partially cracked ventilation positions. Four stars due to peeling the protective film off all the panels, but the greenhouse is superb.
Dennis C. (Appleton, WI) (verified owner) –
We set up Riverstone MONT Greenhouse on a leveled pressure-treated base and it has transformed our gardening hobby. The twin-wall polycarbonate cushions heavy downpours so the noise level inside is pleasant. Be sure to assemble on a windless day to make panel installation easy. Very solid result.
Wade Martinez (Duluth, MN) (verified owner) –
The aluminum extrusions fit together cleanly with stainless steel assembly bolts. The hardware pack was cleanly organized and the hex bolts tightened down without stripping. Has completely elevated our gardening success and extended our season into the winter.
Wayne A. (Kansas City, MO) (verified owner) –
The twin-wall polycarbonate softens harsh sunlight while holding daytime warmth overnight. The diffused light reaches the lower leaves of tall plants, promoting even, bushy growth. Has completely elevated our gardening success and extended our season into the winter.
Derrick R. (Peoria, IL) (verified owner) –
The gutters channel runoff to the back corners where we hooked up our 50-gallon rain barrel. The structural cross-ties provided handy mounting points for our grow lights and small circulation fans. Has completely elevated our gardening success and extended our season into the winter.
Brett W. (Bozeman, MT) (verified owner) –
The door latch has a padlock hole so we can keep curious neighborhood pets from wandering in. The panels slide into continuous aluminum channels that lock them firmly against wind uplift. Solid engineering and top notch materials throughout. Very happy with this purchase.