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. Edward Taylor (verified owner) –

    The humidity levels stay consistent, creating an ideal microclimate for tropical house plants. We mounted thermometer sensors at canopy height and bench height to track temperature gradients. Our seed starts have never been healthier. Highly recommended to all gardeners.

  2. Dave & Sarah Clark (verified owner) –

    The crystal clear side walls give us full visibility into our plants from the kitchen window. The clear side panels provide maximum solar gain while the opaque roof prevents leaf burn. Has completely elevated our gardening success and extended our season into the winter.

  3. Frances Z. (Asheville, NC) (verified owner) –

    We staged two six-foot potting benches and three tiers of seedling flats with plenty of walking room. The roof slope sheds rain quickly so there is never standing water or dirt accumulation on top. Our seed starts have never been healthier. Highly recommended to all gardeners.

  4. Jack J. (verified owner) –

    The integrated rain gutters along the eaves make it effortless to collect rainwater for the plants. The sliding door rollers are adjustable so the door hangs plumb and moves with light finger pressure. Our seed starts have never been healthier. Highly recommended to all gardeners.

  5. Jeff & Amy L. (Cedar Rapids, IA) (verified owner) –

    We installed a small thermostatically controlled heater and kept tender starts warm during late frosts. The diffused light reaches the lower leaves of tall plants, promoting even, bushy growth. Be sure to assemble on a windless day to make panel installation easy. Very solid result.

  6. Kimberly Myers (verified owner) –

    The twin-wall polycarbonate softens harsh sunlight while holding daytime warmth overnight. The foundation clips gripped the bottom rail securely and screwed into our 4×4 base timbers. Five stars. Beautiful, functional greenhouse that plants absolutely love thriving in. Great addition to our property.

  7. Sharon Jackson (verified owner) –

    The door latch has a padlock hole so we can keep curious neighborhood pets from wandering in. The aluminum frame bolted together rigidly once all the corner brace gussets were secured. Five stars. Beautiful, functional greenhouse that plants absolutely love thriving in.

  8. Adam Lopez (verified owner) –

    The sliding door glides smoothly on its upper track and can be latched open on sunny days. The structural cross-ties provided handy mounting points for our grow lights and small circulation fans. Our seed starts have never been healthier. Highly recommended to all gardeners.

  9. Andrea Gallagher (Greenville, SC) (verified owner) –

    The polycarbonate panels survived golf-ball-sized hail without cracking or denting. The diffused light reaches the lower leaves of tall plants, promoting even, bushy growth. Be sure to assemble on a windless day to make panel installation easy. Very solid result.

  10. Nicole Hernandez (Bend, OR) (verified owner) –

    We installed three levels of metal shelving and have room for dozens of plant trays. We added foam weatherstripping around the door frame to seal out chilly late autumn drafts. Our seed starts have never been healthier. Highly recommended to all gardeners.

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