Riverstone MONT Greenhouse – Growers Package – 8’x20′

(13 customer reviews)

$3,401.22

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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.
FREE On-Site Assembly Included — Our nationwide network of certified local technicians will assemble your order right at your address, ready to use.
SKU: NLR-GRN-1042 Category: Brand:
Description

The Riverstone MONT Greenhouse – Growers Package – 8’x20′ 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-1042
  • 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 – Growers Package – 8’x20′ 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 (13)

13 reviews for Riverstone MONT Greenhouse – Growers Package – 8’x20′

  1. Troy D. (verified owner) –

    We set up Riverstone MONT Greenhouse on a leveled pressure-treated base and it has transformed our gardening hobby. The aluminum frame bolted together rigidly once all the corner brace gussets were secured. Our seed starts have never been healthier. Highly recommended to all gardeners.

  2. Sarah Jimenez (Cedar Rapids, IA) (verified owner) –

    Survived a windy spring storm with 40 mph gusts without any panel rattle or frame deflection. The hardware pack was cleanly organized and the hex bolts tightened down without stripping. Four stars due to peeling the protective film off all the panels, but the greenhouse is superb.

  3. Wyatt Scott (verified owner) –

    The polycarbonate panels survived golf-ball-sized hail without cracking or denting. The twin-wall polycarbonate cushions heavy downpours so the noise level inside is pleasant. Four solid stars. Excellent growing environment once you get through the detailed assembly.

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