MONT Black Greenhouse

Designed for Gardeners Who Want Strength, Space, and Year-Round Growing Confidence

Designed for gardeners who demand strength, efficiency, and expandability. The MONT Black Greenhouse by Riverstone Industries combines a commercial-grade frame, energy-saving polycarbonate, and modular design, all made and supported in the USA.

With unmatched durability, low operating costs, and the strongest warranty in the industry, this greenhouse isn’t just a purchase, it’s an investment in your growing success.

Key Features:

• Unmatched Durability – Heavy-duty 1.25″ aluminum frame (black, powder-coated) resists rust and corrosion. Rated for winds up to 65 mph and snow loads of 24 lbs./sq. ft.

• Energy Efficient – Average cost to run year-round is just $100–$150, thanks to 8mm twin-wall UV-protected polycarbonate panels.

• Industry-Leading Warranty – Backed by a 10-year manufacturer warranty, the strongest in the industry.

• Superior Insulation – Twin-wall polycarbonate diffuses sunlight while retaining heat for consistent growing conditions.

• Built-in Ventilation – Pre-installed automatic roof vents self-regulate temperature without electricity.

• Expandable Design – Start with 8′ and add 4′ extension kits up to 24′ to scale with your needs.

• Easy Assembly – Pre-cut panels, pre-drilled holes, and included tools make assembly straightforward.

• American Made – Proudly designed and manufactured in the USA, ensuring top-tier quality.

• Grow Year-Round – Extend your growing season into colder months without expensive heating setups.

What’s Included:

• All-aluminum framework (powder-coated black)

• All 8mm twin-wall polycarbonate panels

• Double doors (pre-assembled)

• Integrated roof vents with automatic openers

• All hardware and fasteners

• Assembly instruction manual

• Screwdriver and wrench

Dimensions:

• 8FT x 8FT — 101" W x 101" L x 90" H

• 8FT x 12FT — 101" W x 149.75" L x 90" H

• 8FT x 16FT — 101" W x 198.25" L x 90" H

• 8FT x 20FT — 101" W x 247" L x 90" H

• 8FT x 24FT — 101" W x 295.75" L x 90" H

(Each base model can be expanded in 4’ increments with optional extension kits.)

Frequently Asked Questions:

1. What foundation do I need to build on?
A level, flat surface is essential, Riverstone recommends either a concrete pad or a sturdy wood platform. For the 8’×8’ model, your base should be at least 8.4'×8.4'. Anchors aren’t included and must be purchased separately.

2. Are all the assembly tools included? What else should I bring?
Yes—your kit includes a screwdriver, wrench, and a spacer strip. For a smooth build, you’ll also need gloves, safety goggles, a level, tape measure, ladder, and silicone sealant. 

3. What do I do if parts are missing or damaged?
Before starting assembly, check the inventory list in the manual. If anything is missing or damaged—stop and contact Riverstone Customer Service. Their contact info is printed in the manual.

4. Can I expand the greenhouse later if I buy a 8’ base now?
Absolutely. The MONT greenhouse is modular—you can easily add 4-foot extension kits to grow up to 24 feet in length. 

5. How long does it take to assemble the greenhouse?
Depending on size and experience, plan for 1 full day for an 8’ model, and 1–3 days for larger sizes, especially if you’re doing it solo.