Yes you can make a wooden grow chamber. I have one with over $2000 worth of equipment inside growing 12 plants at a time. Here's a list of what I used. You can figure out how it all goes together.

- 3/4"x4'x8' Particle Board
- White Tile (For Flooring)
- Door Hinges
- Door Pull Handle
- Cam Lock (To Lock For Security)
- Eave Vent (For Passive Intake)
- Smoke Detector (Well That's Obvious With Grow Lights Inside)
- Door Sealant Tape (To Block Light From Entering Door You Will Make)
- Aluminum Tape (I Used To Tape Up Mylar At Corners)
- White Paint (For Outside Of Box To Make It Fit In With House And Surroundings)
- Silicone Sealant (To Seal Corners Of Inside Of Box After Nailing Or Screwing)

Total Cost At Home Depot Or Lowe's $137.00

Hope this was of help to you in some way. Good luck.