About T3 Greenhouse Supply
T3 Greenhouse Supply is a California based greenhouse manufacturer specializing in steel greenhouse structures built for strength, longevity, and automation readiness. We design and fabricate professional grade greenhouses for residential growers, urban farms, and agricultural operations that require dependable environmental control. Our focus is on structural integrity, scalability, and real world performance so growers can produce consistently year round.
What We Build
We build steel greenhouses engineered to support automated growing systems including light deprivation, irrigation, ventilation, and climate management. Unlike lightweight or mass produced kits, T3 greenhouses are designed as long term structural foundations for modern growing environments. From compact backyard greenhouses to larger farm scale projects, our systems are built to adapt as growing needs evolve.
Designed for Modern Growing Systems
Modern growing requires precision, flexibility, and reliability. T3 Greenhouse Supply designs greenhouse structures that integrate seamlessly with automation technology, allowing growers to manage daylight cycles, airflow, and water delivery with confidence. Our greenhouse systems are built to support efficient production while reducing manual labor and operational complexity.
Built for Residential and Agricultural Growers
T3 greenhouse systems serve a wide range of growers, from homeowners growing food for their families to agricultural operations requiring consistent environmental control. Every structure is designed to support long term use, regional climate demands, and future automation upgrades. Our greenhouses are tools for independence, sustainability, and reliable production.
Our Approach
At T3 Greenhouse Supply, we believe a greenhouse should be more than a shelter. It should be a dependable growing system that empowers growers to control their environment and improve results over time. By focusing on quality materials, thoughtful design, and automation ready structures, we help growers build confidence in their growing operation.
Meet the Owner – Tommy Rawlings
T3 Greenhouse Supply was founded by Thomas Rawlings with the goal of building high quality greenhouses that people can actually afford. After years of working in the greenhouse and agricultural industry for other companies, Thomas saw firsthand how many growers were underserved by high pricing and poor customer support. He knew there was a better way to build greenhouses that focused on honest pricing, strong structures, and real customer relationships.
With more than 20 years of experience in and around the farming industry, Thomas brings practical knowledge and hands on problem solving to every project. He works directly with every customer on a one on one basis, helping growers across the United States find greenhouse solutions that fit their goals, their land, and their budget. At T3 Greenhouse Supply, that personal approach is not an add on. It is the foundation of the business.
Our Project Showcase
Explore Our Greenhouses
Yes. All of our commercial and backyard greenhouse kits can be engineered to meet local snow load and wind load requirements in your state. We provide stamped structural engineering documents for all 50 states upon request — perfect for licensed farms, building permit applications, or USDA funding.
Every T3 greenhouse frame kit includes:
- Galvanized steel hoops and purlins
- Purlin clamps, tek screws, hardware
- Greenhouse channel and wiggle wire
- Optional V Truss package for added roof strength
- Powder coating (select models)
Our kits are ideal for everything from small backyard gardens to fully-licensed cannabis farms.
Absolutely. All greenhouses are modular in 5-foot increments, allowing custom lengths like 20×50, 24×85, or 30×120. Whether you’re building a compact home food garden or a full commercial flower farm, we’ll help size it to fit your needs. The 10×12 Bloombox comes in 4ft spacing and can be expandable.
Standard spacing is 5 feet between hoops (Bloombox 4 feet), which maximizes structural integrity and airflow. We also offer custom 4′ or 6′ spacing for specific growing goals or environmental needs.
Yes. T3 is a leader in greenhouse automation, and we offer full integration with variety of different brand systems, including:
- ⛅ Automated light deprivation curtains
- 💧 Smart irrigation and misting systems
- 🌬️ Temperature-triggered exhaust fans and ridge vents
- ☀️ Solar-powered automation for off-grid growing
- 💡 Complete control of your lighting
- 📱 Remote app access and scheduling from your phone
Whether you’re a cannabis home grower, off-grid gardener, or licensed hemp cultivator, our greenhouse systems are built for full control.
- For licensed cannabis farms or serious production:
➤ Our 20×100 & 30×100 Gothic Light Dep Greenhouses are engineered for strength, ventilation, and automated blackout cycles. - For home growers or hobbyists:
➤ Our 10×12 BloomBox greenhouse is perfect for discreet, small-batch flower and hemp grows — complete with solar automation and optional blackout.
Whether you’re growing for personal use or building a small brand, we’ve got you covered.
Yes! Our kits are perfect for:
- 🥕 Backyard vegetable gardening
- 🌶️ Salsa gardens (tomatoes, peppers, cilantro, onions)
- 🌿 Healing herb gardens (lavender, chamomile, echinacea)
- 🥬 Leafy greens and microgreens
- 🌸 Cut flower production
- 🍓 Year-round fruit and vegetable farming
With optional shade cloth, irrigation, and climate control, your greenhouse can produce fresh food in every season.
Yes. Our greenhouses — especially the BloomBox 10×12 — are ideal for off-grid living and solar-powered gardening.
With our optional solar automation kits, you can control fans, lights, irrigation, and curtains without any connection to the power grid. Perfect for:
- Remote properties
- Homesteaders
- Eco-conscious growers
- Sustainable food systems
Yes. We ship greenhouses, automation packages, and greenhouse accessories anywhere in the continental United States. Export shipping is available for international customers, and freight quotes are calculated based on steel weight and destination.
- Steel Frame Kits: 10-year warranty on galvanized steel
- Greenhouse Poly Film (10 mil): 4-year rated life, 1-year warranty
- Twin-Wall Polycarbonate Panels: 10-year manufacturer warranty
- Greenhouse Accessories & Automation: 1-year manufacturer warranty (unless otherwise stated)
Note: T3 is not responsible for damage from extreme weather or acts of nature.
Yes. We support growers at every stage:
- 🔧 Phone & virtual build support
- 🧰 Custom install guides and cut lists
- 🛠️ Contractor referrals for full installs in all 50 states
- 👥 Access to our online grower community & AI support system (coming soon!)
Whether you’re setting up your first backyard garden greenhouse or scaling up a commercial cannabis farm, our team is here to help.
