Best Grow Room Setup (Step by Step)

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How To Build A Grow Room In A Garage Step By Step?

A garage can be perfect for a grow room. I will show you why in a moment… fact, I want to go as far as showing you how to build a grow room in a garage step by step and introduce you to some other popular grow room ideas

Let’s go right in:

You might be knowing this but even if, allow me to jog your memory a bit… A grow room is an interior space designed to be used for indoor gardening.

Now, a perfect indoor grow room is supposed to be completely sealed apart from the strategic ventilation.


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Origin of Grow Rooms

Marijuana Grow Room

The first people to come up with a grow room were marijuana growers. They were looking for a secure location to grow the herb away from law enforcers.

Let’s now come to size…

How Big Should A Grow Room Be?

Its size depends on the intended purpose. In some cases, it will just be a small area created from your spare bedroom or a converted garage.

It can also be gigantic. For example, a commercial grow room can be so large such that calling it a plant factory, or an indoor garden, or even an indoor farm won’t seem out of hand.

What’s The Difference Between A Grow Room and A Greenhouse?

Unlike a grow room, a greenhouse isn’t completely sealed so, they significantly differ. However, a grow tent is closer to a grow room – in fact, it is considered to be a mobile grow room.

Advantages Of Growing Plants In A Grow Room

Growing in your grow room will give you several benefits.

Here they are:

  • Control

It’s easier to manage light, temperature, and even humidity

  • Space economy

Grow rooms are one of the better choices for small-space gardening.

  • Protection

Growing plants are protected from nuisances such as bugs, dust, harsh weather conditions, or destruction by animals and humans

  • Better ROI

Plants are in a better overall condition and yield more. In the end, you will pocket more bucks.


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Things to Consider When Building A Growing Room

Before we finally see how to build a grow room in a garage step by step, let us look some of the factors to consider when setting up a growing room

For the best grow room setup, consider the following;

  • The materials you will use.

You shouldn’t use materials that can mold for your walls. You may have to change the garage walls if it’s currently made of moisture holding materials like wood .

  • Flooring

Water may drip from the growing trays or pots. To withstand water, your grow room’s floor should be at least cemented, tiled or vinyl floored.

  • Lighting

Lights are very crucial to indoor gardening; your garage grow room should be able to accommodate sufficient grow light fixtures even if it’s one of those small grow rooms that people start with.

A garage with windows allows natural light during daytime and in the process saves on electric usage.

  • Ventilation

Growing room should be very well-aerated. Good ventilation will also help eliminate any bad odor coming from the room. You will need to provide for an exhaust fan and a vent.

  • Electrical source

Your grow room also needs an electrical source. Luckily, any normal wall installed in your garage or nearby will do

  • Water supply

Needless to say, you will be watering your plants- even if occasionally. A nearby water source is therefore fundamental to your success.


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Setting Up a Grow Room Step By Step (In Your Garage)

With the considerations out of our way, let’s see how to build your own grow room…

Step 1 – Pick an Ideal Space

Decide on the size and the exact spot where you will site your upcoming grow room. You can convert the whole garage, partition a space for the grow room.

Pick a spot where it will be convenient for you to install all the key provisions like lighting, water point, and ventilation

Step 2 – Draw Your Floor Plan

Now, summon the designer in you. Map out all your ideas for the grow room of your dreams on paper.

Add dimensions plus placement of crucial elements such as intake vents and exhaust fans.

At this stage, you should also figure out the exact measurements- I am talking about the room’s square plus cubic feet.

This is important in as far as purchasing the right size of lights, vents. and fans later on.

Something else to decide here is where in the room will your plants go.

Certainly, this will be influenced by how you have chosen to place the lights and exhaust fan(s)

Step 3 – Insulating the Walls

It’s now time to handle the walls…

Set up the partition walls (if you chose to partition your garage).

Otherwise, now line your walls and the floor of your proposed room with mylar. This prevents moisture damage.

The mylar should be directly tacked on all the walls as flatly as possible.

Mylar also reflects the light around your entire room, thus fully utilizing your light source.

Step 4 – Install Lighting

You will need enough lights. Their number will be dependent on the size of the grow room. As a general guide, install one 600-watt light per every 5-6 feet of area.

Lights make heat, so if you have more lights, you will need a bigger extractor fan.

And if you will be using natural light during the day, you will need to additionally connect your lighting system to a relay & timer system.


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Step 5 – Install Exhaust Plus Intake Fans

Expelling hot air and drawing in some fresh air is very important.

Incoming air should be directed to the bottom area while the hottest air should be extracted from the top area since it is here that it flows naturally.

Generally, the output fan should be bigger than the input fan and you should set the system such that there will be an exchange of air around 30 times every hour.

Again, positioning your fan’s airflow towards the light bulbs will help to keep the temperature down.

In addition, use of HAF (Horizontal Airflow) fans help to maintain an even humidity and temperature throughout your grow room. This reduces condensation on the room walls meaning you will reduce incidences of disease on your plants.

Step 6 – Water System

With lights, plants dry out more quickly, so ensure you water as frequently as required.

Thus, connect your water system.

A hydroponics system can automate this bit so you may add it as part of your grow room setup.

Here is a fact:

Different crops have differing light, humidity, and even soil requirements. Therefore, Research the targeted plants to know their optimum conditions to ensure your grow room will be productive.

Step 7 – Extra Tools

Fit any other tools you may need like humidity meter, pH meter, thermometer, etc.

Although not crucial, they help you to diagnose your plants as soon as you detect problems.

Step 8 – Set Up The Containers

Set up your grow room containers. You can go for hydroponics or soil depending on your budget

Step 9 – Planting

Now, plant your germinated seeds, or whatever else you were to plant in the grow room.


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Build A Grow Room Cheap

If you are on a budget, you can tweak a few things and still end up with a superb grow room.

Let’s skim through them;

  • For growing medium, use soil rather than hydroponics. It’s by far much cheaper and also has less work.
  • For lighting, go for CFLs (compact fluorescent light) are cheaper yet as efficient as other alternatives, LEDs included
  • Instead of Mylar for reflection, use flat white paint. It’s a budget option yet it still reflects more light ( up to 85%). Plus, surfaces painted flat white are easier to keep clean.

So, that’s how to build a grow room in a garage step by step. We have also seen other grow room ideas that can make the whole process cheaper and the most important considerations.

It’s now your turn…

Share with us about your perfect indoor grow room from the comments button below.

We will be happy to reply.


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Related Reads:
Cheap Grow Lights For Indoor Plants
Small Greenhouse Heaters With Thermostat
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Marijuana Grow Bags

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