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Beginner’s guide: How to assemble a cabinet for indoor growing

In a room of your house and with hardly a square meter you can have a discreet plantation of marijuana, thanks to the useful cupboards for indoor cultivation. Sometimes they come with complete kits and sometimes you can set it up by yourself, but there are always certain aspects to consider: a nearby window for the air extractor, an extra space to place the growing paraphernalia or an anti-odour filter are essential details to make this type of growing safe. We also advise you to think about purchasing electric weed grinder.

You are one of those who have been encouraged to grow marijuana indoors for the first time. For whatever reason, you have discarded the garden or terrace: you don’t have that space, you think that growing indoors will give you better results (although this is not always the case)… It doesn’t matter why. The only important thing is that you are going to use a growing cabinet to get the best buds. But now there is a problem: how to set up a good indoor growing cabinet? Here we are going to tell you everything you need to know to have a good cupboard with some simple tricks.

Previous considerations

First of all, you have to consider the space where the cabinet will be mounted. The place is essential: near a window or similar exit to place an extractor tube there. The measurements are also important: it must be at least 1 or 1.2 square metres, without taking into account that you will need extra space to store paraphernalia.

In addition, the place must have easy access to an electricity source and have no obstacles in its vicinity, as it will have to be in the same place for several months. It should also be easy to pour water, nutrients or other elements into the plantation.

If we choose to buy it (some people make it with plywood boards, hinges and a high-pressure sodium bulb), there are different models. In addition to looking at the size (make sure it fits in the room where you want to place it and that there is enough space for the plantation you want to obtain), it is also important to know what material the interior is lined with: white reflective mylar and aluminum-colored mylar reflect light very well so that all the energy from the lights goes to the plants. Keep this in mind when choosing a model.

Lights and action!

The cabinet should have bulbs for the growth and flowering of the plants. Kits usually come with them, but you can also buy them separately. In fact, some of them are only good for one of these phases, although there are others that are good for the whole process. When you buy them you will have to be careful with it and know if they are mixed or only for a particular phase.

The most experienced growers recommend high pressure sodium bulbs, as they are among the most efficient. If we opt for these we must use a ballast that regulates the power and that is very easy to assemble. On the other hand, depending on the final size of the cabinet, you must choose between one or several bulbs.

You will also have to know if they are low consumption, as this is linked to a low performance and therefore a lower production. There are those who establish the formula of 1 gram x 1 W, so that if our bulbs are 400 watts, the harvest will be around 400 grams. The power of the lights should be in line with the size of the cabinet. Thus, a higher power with a smaller cabinet can generate an excess of heat that affects our plantation.

On the other hand, there are also complete lighting kits, with cables, lights and other utensils. The lights can be regulated with a timer. These are necessary for the different photoperiods of the plants and can even serve to activate and turn off the fan and extractor, which we will talk about later.

The need for an extractor and a fan

At the beginning we talked about the convenience of placing the cabinet near a window, in order to extract all the air from the crop. Well, to do this you have to get a good extractor to place in the cabinet and a flexible tube that we will place in the extractor and we will take to the window. Normally, growers place a sheet of wood or plywood with holes in the window that are the same size as the extractor so that it can pass through without any problems and be secured.

On the other hand, you should also place a fan inside the cabinet, so that the plants move and no hot air pockets are generated. Some models come with a clamp to be placed at the desired height. Also check that it is silent, so that it does not alert annoying neighbours with the noise and that it does not bother you in other activities of your house.

It’s time for the assembly

If you buy it instead of making it yourself, the assembly process is very simple. Most commercial cabinets consist of a tubular frame that is assembled and a tarp with zippers that are opened and closed for placement. Make sure that everything is properly fitted in place, according to the instruction manual. Don’t neglect the bottom tarp, which will prevent the floor of the room that has the honour of housing such an interesting wardrobe from getting stained.

Once the structure is assembled, it’s time for the lights. Again, the kits will come with an instruction manual, but if not, the lights will be hung at the top and held by flanges or some alternative element.

The anti-odour filter also deserves special attention. It should be placed connected to the extractor and at least one centimetre from the ceiling of the cupboard, so that it absorbs odours from all parts of the structure.

If you want, before putting the plants in, you can make a simulation for a couple of days (light cycle, fan and extractor in operation…), in order to check that everything works correctly.

Other considerations

Once installed, you can’t forget a thermometer and a humidity control device that indicates the conditions inside at all times. Some of them even come with a memory for the maximum and minimum temperatures, in order to know if there have been great variations during our absence. In addition, it would be interesting to hang some hangers inside, and then put insect catching strips or lighting equipment on them.

If you mount it by yourself instead of buying a kit, you have to worry about it being very resistant and completely waterproof to outside light once it is closed; that is to say, that it is only affected by the light bulbs inside and that it escapes as little as possible when you open it. Also make sure that if you buy it, as well as that the zippers or closures are of quality.

If with all this you just want to start now to assemble your indoor growing cabinet, you should know that we have some tools that will surely be to your liking. Thus, you can get a Dark Room DR 240W III (240x120x200) from Secret Jardin (450 euros), a more than acceptable model for growing several plants comfortably. We also have fluorescent bulbs for the flowering phase of the Agrolite Floración brand, of various powers (105 W for 36,59 euros, 150 W for 38,50 euros, 200 W for 53,24 euros and 250 W for 61,95 euros) and with a useful life of about 8000 hours.

With all that you already know how to assemble your wardrobe, you can, as you put it on, install an additional one that can be used to store plants with another lighting or dark phase or to make use of it if there is an incident with the other one. You have nothing to fear, because you have already demonstrated your expertise with the previous one. How many are you capable of having?