Riverstone MONT Greenhouse – 8’x20′ – Deluxe Kit

(24 customer reviews)

$1,674.04

In Stock
Brand New & Sealed
Free Shipping

Authorized Retailer

100% authentic products direct from official brands

Manufacturer Warranty

Full official manufacturer warranty coverage included

Secure Checkout

Verified U.S. business · 256-bit SSL encrypted payment

30-Day Return Policy

Hassle-free returns & refunds — see policy page

  • 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-1035 Category: Brand:
Description

The Riverstone MONT Greenhouse – 8’x20′ – Deluxe Kit 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-1035
  • 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′ – Deluxe Kit 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 (24)

24 reviews for Riverstone MONT Greenhouse – 8’x20′ – Deluxe Kit

  1. Susan Schmidt (verified owner) –

    The crystal clear side walls give us full visibility into our plants from the kitchen window. The panels slide into continuous aluminum channels that lock them firmly against wind uplift. An incredible investment for anyone who loves fresh garden vegetables and flowers.

  2. Rebecca H. (verified owner) –

    The interior layout accommodates a potting soil bin, watering cans, and dozens of seed trays. The panels slide into continuous aluminum channels that lock them firmly against wind uplift. Has completely elevated our gardening success and extended our season into the winter.

  3. Frances R. (Sioux Falls, SD) (verified owner) –

    The roof vent opens smoothly to provide ventilation on warm afternoons, keeping temperatures balanced. 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. Aaron G. (Raleigh, NC) (verified owner) –

    The aluminum extrusions fit together cleanly with stainless steel assembly bolts. The roof vent hinge operates smoothly and allows excess humidity to escape on sunny mornings. Five stars. Beautiful, functional greenhouse that plants absolutely love thriving in.

  5. Wyatt S. (verified owner) –

    The cathedral ceiling gives generous standing headroom so I never have to hunch while potting plants. The roof slope sheds rain quickly so there is never standing water or dirt accumulation on top. Be sure to assemble on a windless day to make panel installation easy. Very solid result.

  6. Nathan Lee (Appleton, WI) (verified owner) –

    The aluminum extrusions feel substantial and the pre-drilled holes lined up with precision. 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.

  7. Cheryl Ortiz (verified owner) –

    The crystal clear side panels give a wonderful view out into the garden while working inside. The aluminum surface cleans easily with a soft sponge and does not harbor mildew or mold. Has completely elevated our gardening success and extended our season into the winter.

  8. Alan Reyes (verified owner) –

    We staged two six-foot potting benches and three tiers of seedling flats with plenty of walking room. The door handle latches securely in both the fully closed and partially cracked ventilation positions. Has completely elevated our gardening success and extended our season into the winter.

  9. Jason M. (Fargo, ND) (verified owner) –

    The structure was easy to square using the diagonal corner measurement technique in the manual. Following the advice to assemble on a calm, windless day made installing the panels stress-free. An incredible investment for anyone who loves fresh garden vegetables and flowers.

  10. Jason & Katie W. (Lexington, KY) (verified owner) –

    We installed three levels of metal shelving and have room for dozens of plant trays. The sliding door rollers are adjustable so the door hangs plumb and moves with light finger pressure. Take your time leveling your foundation timbers and the frame will square up nicely.

Add a review

Your email address will not be published. Required fields are marked *

You have to be logged in to be able to add photos to your review.