Posted on

how to set up indoor weed grow room

Every space is different and there will be a learning curve to growing in yours.

Privacy and security

HID (high-intensity discharge) lights are the industry standard, widely used for their combination of output, efficiency, and value. They cost a bit more than incandescent or fluorescent fixtures, but produce far more light per unit of electricity used. Conversely, they are not as efficient as LED lighting, but they cost much less.


As your plants get bigger and especially when they start flowering, they’ll start to smell more. Outfitting your grow with a dehuey or AC can help bring odor down.

How to set up indoor weed grow room

Despite seeming like a hard task, identifying the circuit is really easy because the circuit breaker panel should have labels on it, helping you identify to which circuit belongs (either master bedroom, room #2, or whatever you wanna call it) and the amperage of said circuit.

This post was most recently updated on March 26, 2021.

Proper ventilation also helps you maintain humidity levels on point because it is super important, especially during the flowering stage so by having a good ventilation system you can get rid of the excess moisture caused by the water the substrate retains and the moisture your plants release through transpiration.

Improves photosynthesis

Note: Instead of using mylar, you can use a white plastic sheet, it won’t reflect light as good as mylar but it works great if you can’t find mylar easily.

A grow tent is the best DIY grow space because (depending on how you build it) you can easily disassemble it when you need to and then mount it again without needing anything else.

7. Light fixture

One of the 1x2m plywood sheets will need to be cut in half (for the door). You’ll also need 4 door hinges so you can open and close your grow box properly.

So let’s say that the label says 15A and 220V; Now you have the information you need so it’s just a matter of applying it to the following formula:

How to set up indoor weed grow room

Once you’ve set up your ventilation system and everything is in its place, you’ll need to add a carbon filter. You can do this when preparing the grow room or wait until your plants are flowering. It’s much easier to set it up at the start, although you’ll be using it more than you need to. If you wait until the flowering period the filter will last much longer.

Once you know where you’re going to be setting up your ventilation system and how you’re going to be supplying fresh air, you’ll need to install the extractor fan and inline fan, if you’re using one.

Carbon Filter

Once you’ve covered the room with reflective sheeting, you’ll need to prepare your air intake and extraction system. First, make sure nothing can be seen from outside your apartment through the window.

In order to hang your lights correctly, you’ll need to measure out how much space each light is going to cover and find the exact center of the bulb in order to make the right hole in the ceiling for your plants.

Ventilation System

It generally costs more to turn a full room into a grow room rather than simply buying a grow tent; you need to prepare the entire room so that it can efficiently hold and keep cannabis plants alive. Although it may cost a bit more, it’s definitely a much comfier way to grow cannabis. You can get larger yields, grow larger plants and have enough space to get everything done in the one room, which can be difficult in grow tents.