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building a grow box for weed

Building a grow box for weed

The top has two removable parts, one allowing a viewing area and light adjustment in the front and the other access to the power switches.

Total cost was minimal as the most expensive single part was the cooling fans and thermostat and I think I got them on sale for about $35. The rest for the most part was salvaged parts from prior projects around the house. However, if bought new I would estimate about $50 total cost.

Box 1, Light Switch: In this project I used the light switch as the master control for the whole unit.

Step 5: Step Five: Fans Holes

Fans: Install the fans, intake fan on the bottom should be facing in allowing it to suck in outside air and push it into the box. Exhaust fan should be facing out pulling air out of the box.

1″ x 2″ x 6′ (1) not needed but I did use it to cover seams between cuts like on top and above the door

Step 1: Materials

Materials will depend on what size you want the box to be. In this case, the box was 33″ tall x 18.5″ wide x 18″ deep to house starter plants and those that will reach a max height of about 24″. Of course, if you wish to build bigger, add to the below supplies. No special tools needed, just a drill, circular saw, knife, square, and a tape measure. A multi-meter would be helpful if your kind of new to electrical stuff.

Box 2, Junction Box and Power Supply: All wires centralized here and this is where I hooked up the power cable.

Building a grow box for weed

I chose a High Pressure Sodium bulb. Since these produce more light from the side(the long side as opposed to the plug and tip of the bulb), light coverage could be maximized by positioning them front to back. Some creativity was required to install the Cool Tube to keep my HPS bulb from becoming too hot.

Keeping a door open is not a viable option for the stealthy gardener like me! I decided to use some creativity.

The first thing to deal with was the Intake and exhaust – a clean environment and fresh air for my plants.

Sirius: This is definitely an advanced method of creating a grow box, but he makes sure to include a lot of things one needs to consider when creating one, such as ventilation and making sure to leave room for everything you need. Do you have a better/more practical/more efficient design? Let us know so we can share with the world!

My sights set, I loaded Google's 3D rendering freeware, Google SketchUp, and got to work.

Building a grow box for weed

By doing this you keep the wood dry and avoid rotting (keeping mold away from your grow room). It will also make it easier to clean and you won’t have to worry about water leaking to your floor.

Air-tight (temperature, humidity, and airflow)

The exhaust fans ensure a good air exchange, this is crucial to the growth of your plants because the air exchange will provide the CO2 your plants need while letting out oxygen.

Exhaust fan

Now that you have the basic structure ready, it’s time to connect the rest of the equipment but if you don’t have much electrical knowledge or don’t take basic safety precautions, it can be quite dangerous, so to help you avoid emergencies, here are a couple of things you should have in mind.