I recently finished my greenhouse build and thought I would share it here. The main goal from the beginning was to build something that could be a year-round, high-output food production system.

I put the first plants in on May 3, so I have had a few months now to see how everything actually works. Overall, I am really happy with it. There are definitely still some things I am figuring out. I have been battling ants, and my Venturi injector has been giving me some trouble, but for the most part everything is working the way I had hoped.

I thought I would post some pictures and specs and see where the discussion goes. I put a lot of thought into the different parts of the greenhouse and why I chose what I did. Some of those decisions worked really well, and there are already a few things I might do differently.

If you have questions about any of it, ask away. I'm happy to get into the weeds about why I made a particular choice.

The greenhouse

• Riga XL6 from Exaco
• 14 ft wide × 19 ft long × 12 ft tall
• Greenhouse sits on a 20-inch concrete stem wall
• 50-amp subpanel with two 20-amp circuits
• 7 electrical receptacles
• ¾" PVC water line
• Two Tornado 18" outdoor wall-mount fans for air circulation
• About 6" of drain pebble for the floor
• 4 Vego raised beds in different configurations

Lighting

• 2 × Medic Grow Fold 650W LEDs
• 1 × Medic Grow Mini Sun-2 500W LED
• TrolMaster HCS-1 controller
• TrolMaster lighting controller
• TrolMaster PAR Hydro MBS PAR sensor

I didn't want the grow lights to just come on at a certain time and run regardless of what was happening outside. The PAR sensor measures the sunlight coming into the greenhouse and feeds that information to the controller. That gives me the ability to use the LEDs as supplemental light when the plants actually need it, which should become especially useful during our Oregon winters.

Irrigation

• Rain Bird ESP-ME3 4-station controller
• Rain Bird 100DVF 4-valve manifold with flow control
• Venturi injector
• Cleanout valves on the input and after each irrigation valve
• Hose bib
• Vego irrigation kits feeding the raised beds

I wanted each bed to be its own irrigation zone so I could water differently depending on what was growing in it. I also wanted a way to run compost extract through the irrigation system, which is why I added the Venturi.

The Venturi is actually one of the things I'm still working on. I can get it to draw, but I'm having trouble getting enough irrigation flow at the same time. So that part is still very much a work in progress.

I'll attach pictures showing the greenhouse, the build, and some of these systems.

If anyone wants more details about something you see or wants to know why I did something a certain way, just ask. And if you see something you would have done differently, I'm interested in hearing that too.