Riverstone MONT Standard 8 ft × 8 ft Black Greenhouse Kit with 8 mm Twin-Wall Polycarbonate

Riverstone MONT Standard 8 ft × 8 ft Black Greenhouse Kit with 8 mm Twin-Wall Polycarbonate

The Riverstone MONT Standard 8 ft × 8 ft Black Greenhouse Kit with 8 mm Twin-Wall Polycarbonate is a premium-built greenhouse that brings year-round growing capability to your backyard or garden. Constructed with a heavy-duty extruded aluminum frame that’s electrostatically painted black (lead-free), this greenhouse is engineered for strength and durability that outperforms typical hobby greenhouse kits. The professional-grade 8 mm twin-wall polycarbonate panels used on the walls and roof provide superior insulation and light diffusion — helping keep cooler air in during summer and retaining warmth through colder seasons.

Standing 7 ft 6 in tall at the peak, the interior height accommodates tall plants and gardeners alike, creating a comfortable workspace. Thoughtful design elements include an integrated flush base, automatic roof vent opener, and a built-in dual rainwater gutter system, all of which enhance the greenhouse’s overall performance and convenience.

Featuring large hinged lockable double doors with an opening nearly 6 ft high × 4 ft wide, entry and movement of plants or equipment is easy and secure. The MONT Standard greenhouse also allows expansion with optional 4 ft extension kits as your gardening demands grow, making it a flexible choice for serious gardeners who want to expand later without replacing the entire structure.

Backed by a 10-year limited warranty on both the frame and polycarbonate panels, this greenhouse offers long-term reliability and performance. Proudly made in the USA, it’s a solid investment in year-round gardening and plant cultivation.

Features

• Professional-Grade 8 mm Twin-Wall Polycarbonate Panels – Offers excellent insulation and light diffusion for year-round growth.

• Heavy-Duty Extruded Aluminum Frame (Black) – Electrostatic paint with 0.0% lead for long-lasting structural strength.

• Integrated Flush Base Design – Enhances stability and simplifies assembly.

• Automatic Roof Vent Opener – Helps regulate internal temperature without manual effort.

• Integrated Dual Rainwater Gutter System – Efficiently manages roof runoff.

• Large Hinged Lockable Double Doors – Approximately 6 ft high × 4 ft wide for easy access.

• Expandable Design – Compatible with optional 4 ft greenhouse extension kits.

• DIY Assembly – Quick-assembly construction with included hardware and manual.

• 10-Year Limited Warranty – Industry-leading coverage on frame and panels.

• Made in the USA – Designed and manufactured for quality and longevity.

Specifications

Accessories available separately (not included in this package):

• Interior shade cloth system
• programmable watering systems
• potting sinks
• workbench system

Expandable - ability to expand greenhouse in 4ft increments as needs grow

What's Included

• All Aluminum framework
• All PC panels, set of double doors (assembled)
• Hardware
• Instruction manual
• Screwdriver and wrench

Care Instructions: soapy water

DIY assembly construction, Integrated flush base design.

Allow for a FULL weekend to fully assemble (ground prep NOT included). Two people suggested for assembly. Actual time to construct will depend on size of the greenhouse and skill levels.