Built in California. Engineered for Growers.
At T3 Greenhouse Supply, we build professional-grade greenhouses made in the USA, engineered for everyone from backyard farmers and homesteaders to commercial hemp cultivators. Based in Shasta Lake, California, we design, fabricate, and powder-coat every structure in-house to deliver unmatched strength, performance, and longevity.
About T3 Greenhouse Supply
T3 Greenhouse Supply is known for our engineered commercial greenhouses — purpose-built for high-yield farming with integrated light-deprivation,
Growing at Every Scale
Whether you’re managing an urban farm, running a hemp operation, or cultivating vegetables at home, our systems are scalable, durable, and designed for results.
Our Bloom Box 10×12 brings our commercial technology to residential growers — offering a compact, automation-ready greenhouse ideal for homesteads, urban backyards, and small-space farms that want professional performance on a personal scale.
Why Grow with T3
- Crafted in California – 100% USA fabrication and powder coating.
- Automation-Ready – Internal light-dep, irrigation, and climate integration.
- Built to Last – Heavy-duty steel, precision fittings, and long-term durability.
- For Growers, by Growers – Designed by people who understand cultivation from seed to harvest.
- Sustainable by Design – Helping families and farms grow fresh, local, and independent.
Our Project Showcase
Explore Our Greenhouses
Let’s grow something great together
At T3 Greenhouse Supply, we don’t just build structures — we help growers cultivate freedom, efficiency, and sustainability.
Contact us or call (530) 319-3685 to start building your custom greenhouse.