Riverstone | 12x18 ft Thoreau Growers Edition Educational Greenhouse Package, 8mm Twin-wall Light Diffusing Polycarbonate

Because prices often change, please contact us directly for the most current pricing. This product is custom-made and cannot be refunded or returned once production begins.

This commercial-grade greenhouse is shipped via commercial truck and must be unloaded and assembled by professionals—it's not a DIY project. Proper installation requires water and electrical connections for optimal operation. Please note, this product is non-returnable once purchased. We encourage you to contact us with any questions before ordering and to watch our detailed features video to fully understand the benefits of this greenhouse.

The Thoreau Growers Greenhouse Package is expertly designed for growers seeking a professional-grade structure that provides an optimal controlled environment for cultivating a wide variety of crops. Featuring upgraded 8mm twin-wall light-diffusing polycarbonate panels, this greenhouse maximizes natural light capture and distribution, reducing energy costs associated with supplemental lighting—though additional lighting may still be required for crops needing up to 18 hours of daily light.

Constructed with a durable 2" x 2" galvanized steel frame and pre-welded stanchions, the Thoreau greenhouse offers commercial-grade quality identical to leading industry standards. The walls are 6 ft tall with a 9.5 ft center peak, providing excellent air circulation and spacious interiors. This design includes secure, lockable access and thermostatic climate control for year-round growing stability.

Available in eight customizable sizes and designs, the package is engineered to meet local permitting requirements, with signed and sealed engineering drawings provided to simplify compliance. Built to withstand snow loads of 10 lbs/sq ft and winds up to 90 mph, the Thoreau Growers Greenhouse is a durable, long-lasting solution proudly made in the USA.

All our GROWER Greenhouses come with a full assembly manual and our team is here to walk you through all steps of in the construction process as needed.

FEATURES

• Dimensions: 12 ft. (wide) x 18ft (deep) x 6ft (side walls) total height of 9.5ft (peak)
• Footage: 216 sq ft
• 8mm twin wall light diffusing polycarbonate end walls, side walls and roof
• 2 in x 2 in galvanized base rail and framing system.
• French glass entry security steel door with lockset. 42 in. wide x 84 in. high ADA ?? inch thick.
• 2 24 in motorized shutters for air circulation
• 1 18 in. Quietaire Industrial Exhaust Fan 2 3 ft. deep x 18 ft. long commercial work benches- attached to the frame
• 1 Two stage commercial thermostat to control fan & shutters
• 1 240 volt electric heater with built in thermostat
• 1- 18 ft. x 20 ft. (63%) shade cloth with tie down rope
• 1 automatic and programmable watering system with timer.
• Stamped and Sealed Drawings included in cost.

Benefits

• Optimizes natural light diffusion to enhance photosynthesis and reduce energy costs

• Provides a secure, thermostatically controlled environment ideal for professional growers

• Customizable sizes and designs to fit diverse growing needs and local regulations

• Built with durable commercial-grade materials designed for longevity and resilience

• Simplifies permitting with included stamped and sealed engineering drawings

• Proudly made in the USA, ensuring quality craftsmanship and materials

Important Notes

• Custom-made product; no returns once production begins

• Requires professional unloading and assembly due to commercial delivery and size

• Water and electrical connections necessary for full operation

• Purchaser responsible for verifying local ordinance compliance prior to ordering

INSTALLATION MANUAL