T3 Greenhouse Supply manufactures Commercial Greenhouse kits engineered for real-world growing conditions.
From high-wind agricultural zones to hot, arid climates and cold seasonal regions. Every structure is fabricated
in-house at our Shasta Lake, California shop using heavy-duty U.S.-made galvanized steel, and every kit ships
automation-ready for ventilation, irrigation, light deprivation, and climate control integration
Choose from four commercial profiles
Why Choose T3 Greenhouse Supply ?
1️⃣Built with U.S. Manufactured Galvanized Steel
T3 Greenhouse Supply uses U.S. manufactured galvanized steel exclusively for all greenhouse frames. Our structures are built using proven 2 3⁄8 inch round and 1 5⁄8 inch round steel tubing selected for strength, corrosion resistance, and long-term reliability. Galvanized steel protects against rust and environmental exposure, making it ideal for demanding greenhouse environments and long service life.
2️⃣ Engineered for Strength and Long-Lasting Durability
Every T3 greenhouse is engineered to handle real-world load requirements including wind, snow, and seasonal weather extremes. Heavy-wall round steel tubing provides excellent load distribution and structural stability. Optional powder coating adds an additional layer of protection for growers operating in high-humidity or harsh climates.
3️⃣ Designed for Automation and Scalable Growth
All T3 greenhouses are automation-ready by design. Our structures support the integration of irrigation systems, climate controls, ventilation, and daylight management without modification. Whether you are building a compact backyard greenhouse or a large commercial operation, our modular designs scale efficiently while maintaining consistent performance.
4️⃣ Adapted to Your Climate and Growing Goals
No two growing environments are the same. T3 greenhouse systems are designed to match local climate conditions, elevation, and production objectives. From hot, arid regions to colder seasonal zones, our greenhouses maintain stable internal conditions that support predictable growing cycles and improved yields.
5️⃣ Light Deprivation and Daylight Cycle Control
Controlling daylight cycles allows growers to manage plant development and flowering schedules with accuracy and consistency, a process known as photoperiodism .T3 Greenhouse Supply offers automated light deprivation systems designed to regulate light exposure without manual operation.
These systems integrate with advanced greenhouse controllers to create reliable light and dark schedules. By managing photoperiods inside the greenhouse, growers can improve production efficiency, shorten crop cycles, and achieve multiple harvests throughout the year while maintaining consistent plant performance.
🌗 Light Deprivation Greenhouses
Precision-Grown Results with Automated Blackout Systems
We engineer our light deprivation greenhouses for growers who demand total control over photoperiod. Designed specifically for hemp and other photoperiod-sensitive crops, these systems use smooth-operating motorized blackout curtains paired with automated greenhouse controllers for hands-free, consistent flowering cycles.
Whether you’re pushing for multiple harvests per year or enhancing flower quality with timed dark periods, T3’s systems deliver maximum light control with minimal labor.
✔️ The Only Company Offering Light Deprivation in a 20×100 Greenhouse
We’re proud to be the only manufacturer offering fully integrated light dep systems in a standard 20′ x 100′ greenhouse package — ideal for commercial growers who want production-scale results in a streamlined footprint.
✔️ Custom Sizes Available
Need a different footprint or unique automation requirements? T3 Greenhouse Supply builds custom greenhouses to fit your crop schedule, climate, and compliance needs.
Featured Project: Allegany County, NY
T3 recently completed 14 internal light-deprivation greenhouses in Allegany County, New York – a three-year
project that created jobs for local contractors, electricians, plumbers, and building crews across the region. Up
next: 10 internal 30×100 greenhouses in Bridgeton, New Jersey.
"In the five years since I started this company, this stands out as one of our greatest accomplishments."
Thomas Rawlings
Founder of T3
☀️ Benifits Of a t3 Greenhouse
T3 greenhouse systems deliver clear advantages over traditional growing environments:
✅ Lower construction and operating costs compared to fully indoor facilities
✅ Improved energy efficiency through the use of natural sunlight
✅ Stable growing conditions that support consistent yields
✅ Year-round production enabled by environmental and daylight control
✅ Protection from wind, frost, pests, and extreme weather
✅ Optional solar integration for off-grid or low-energy greenhouse operation
🏆 Greenhouse Models & Solutions
🌾 Commercial Agricultural Greenhouses
Designed for produce farms and commercial growers seeking to extend growing seasons, improve yield consistency, and protect crops in a controlled environment. These greenhouses support automation, climate control, and scalable production.
💨 High-Performance and Specialty Crop Greenhouses
Engineered for advanced environmental control and precise daylight management. These systems are ideal for growers focused on optimized flowering cycles, repeat harvests, and predictable production schedules.
🏡 Backyard and Residential Greenhouses
Compact greenhouse solutions designed for home growers and homesteaders focused on sustainable food production. Our 10×12 Bloombox greenhouse offers a space-efficient footprint with automation-ready features that bring professional-level control to residential growing.
⚡ Solar-Integrated and Off-Grid Greenhouses
Greenhouse systems designed to operate with solar power and low-energy automation. These solutions are ideal for remote locations or growers focused on energy independence and long-term sustainability.