A Year-Round Greenhouse You Can Move
A modular greenhouse built on the Thios open standard. 80 sq ft of year-round growing space — trailer-mountable, grows food at -20°F, built from standard lumber.
Design Your Greenhouse → No account required. Start building in seconds. Built on the Thios open standard · CERN OHL v2 licensedCommercial greenhouses cost $25–$35 per sq ft installed. Hoop houses blow apart in wind. Traditional builds are permanent — you cannot move them when you move. The Agrosphere is a modular year-round greenhouse you build from standard lumber. 80 sq ft, trailer-mountable, grows food at -20°F.
Not a PDF — a complete open-source construction system
Complete build plans under CERN Open Hardware License. Modify, share, and improve freely.
Design your layout in our free online tool. Get your exact bill of materials and cut list.
Detailed assembly guide with dimensions, material specs, and photos for every module.
Get quotes from local suppliers. Connect with builders in your area.
Polycarbonate panels + thermal mass maintain 65–75°F inside while it is -20°F outside. 50–100 kg of greens per year.
Vertical hydroponic towers in the center, soil beds along the perimeter. 80–90% water recirculation.
Move it to follow sunlight, reposition seasonally, or take it when you move. Under $9,000 in materials.
| Growing Area | ~80 sq ft usable (with walkways) |
| Growing Season | Year-round (maintains 65-75°F at -20°F outside) |
| Annual Yield | 50 - 100 kg of greens (110 - 220 lbs) |
| Water Efficiency | 80 - 90% recirculation (hydroponic + drip) |
| Panels | Transparent polycarbonate for natural light |
| Growing Systems | Vertical hydroponic towers + soil beds |
| Foundation | Trailer-mounted or permanent fixed |
| Materials Budget | $5,000 - $9,000 (including glazing, HVAC, and grow systems) |
Step-by-step handbook, cut lists, material specs, and assembly guides — plus lifetime updates and community access. From $29.
See Pricing & Editions30-day money-back guarantee · Open-source license included
Design your configuration in our free online tool, then get material quotes from suppliers near you.
Design & Get QuotesEverything you need to build with precision — from templates to jigs.
Precision CNC-cut MDF routing guides and full-scale paper patterns for accurate fabrication.
View Templates →Download STL files for assembly jigs, alignment tools, and drilling guides. Print at home.
Professional-grade steel and aluminum jigs shipped directly to your door.
The Thiosphere™ SDK, the foundation to all our products, is open source hardware. In fact, all Thios products are. Specifically the CERN Open Hardware Licence Version 2 - Strongly Reciprocal.
That's a fancy way of saying that if you want to use our design, even for commercial purposes, you have to share your changes with everyone else.
Get the Whole Thiosphere™ Handbook - the complete guide to modular open source spaces - starting at $29!
Founder's Edition includes lifetime access to all planned handbooks!
