Riverstone MONT Greenhouse – 8’x12′ – Greenhouse Only

(22 customer reviews)

$1,674.04

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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-1030 Category: Brand:
Description

The Riverstone MONT Greenhouse – 8’x12′ – 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-1030
  • 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’x12′ – 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 (22)

22 reviews for Riverstone MONT Greenhouse – 8’x12′ – Greenhouse Only

  1. Victoria Alvarez (verified owner) –

    The sliding door glides on smooth overhead bearings and latches closed securely. The clear side panels provide maximum solar gain while the opaque roof prevents leaf burn. Five stars. Beautiful, functional greenhouse that plants absolutely love thriving in.

  2. Louis E. (verified owner) –

    The roof vent opens smoothly to provide ventilation on warm afternoons, keeping temperatures balanced. The roof vent hinge operates smoothly and allows excess humidity to escape on sunny mornings. Four stars due to peeling the protective film off all the panels, but the greenhouse is superb.

  3. Colton Diaz (verified owner) –

    Freight delivery was prompt and the aluminum extrusions were packed securely in long boxes. The headroom along the center ridge beam allows comfortable standing even for taller gardeners. Solid engineering and top notch materials throughout. Very happy with this purchase.

  4. Richard H. (Grand Rapids, MI) (verified owner) –

    The greenhouse holds solar heat remarkably well, staying ten degrees warmer than the outside air at dusk. 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. Exceeded our expectations overall.

  5. Emily Jimenez (Flagstaff, AZ) (verified owner) –

    Peeling the protective UV film took some patience, but the panels underneath were pristine. The hardware pack was cleanly organized and the hex bolts tightened down without stripping. Take your time leveling your foundation timbers and the frame will square up nicely.

  6. Emma Patel (verified owner) –

    The greenhouse survived an unexpected spring hail storm with zero damage to the roof panels. The base profile is sturdy enough to step on without bending when walking through the doorway. Solid engineering and top notch materials throughout. Very happy with this purchase. Definitely happy with the purchase.

  7. Trevor Adams (verified owner) –

    Our heirloom tomatoes and sweet peppers are thriving inside Riverstone MONT Greenhouse this season. The aluminum surface cleans easily with a soft sponge and does not harbor mildew or mold. Five stars. Beautiful, functional greenhouse that plants absolutely love thriving in.

  8. Amy Patel (verified owner) –

    The aluminum frame is rigid and the powder-coated finish shows no signs of rust or oxidation. The panels slide into continuous aluminum channels that lock them firmly against wind uplift. Our seed starts have never been healthier. Highly recommended to all gardeners.

  9. Olivia S. (verified owner) –

    An exceptional growing shelter that has doubled our backyard garden harvest. The twin-wall polycarbonate cushions heavy downpours so the noise level inside is pleasant. Has completely elevated our gardening success and extended our season into the winter.

  10. Brett A. (Bozeman, MT) (verified owner) –

    The gutters channel every drop of rain straight into our rain collection barrel. The door handle latches securely in both the fully closed and partially cracked ventilation positions. Our seed starts have never been healthier. Highly recommended to all gardeners.

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