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Cardboard box grow room

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  • Feb 20 2009 06:10 PM
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Posted 20 February 2009 - 06:10 PM

I was on youtube tthe other day and i watched this guy make a grow box out of cardboard and i thought that would be a cheap and simple set up. And i was wondering has anyone done that , that could maybe help me out because i have never grown before. thanks
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Posted 20 February 2009 - 06:28 PM

NO. Terrible idea. Not only is it going to be near impossible to seal,a nd keep clean, and work with since its so weak, You run the huge risk of a fire hazard. Think about it. you have lights inside there that are on for 18+ hours a day, sometimes 24 hours a day for weeks at a time. DO NOT use cardboard. You are only asking for trouble.

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Posted 20 February 2009 - 06:44 PM

what if you put foil around the cardboard and tape sticks to the board for support?

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Posted 20 February 2009 - 06:50 PM

NO. Terrible idea. Not only is it going to be near impossible to seal,a nd keep clean, and work with since its so weak, You run the huge risk of a fire hazard. Think about it. you have lights inside there that are on for 18+ hours a day, sometimes 24 hours a day for weeks at a time. DO NOT use cardboard. You are only asking for trouble.

Yes, thats the same thing I said before. Seriously. When you get home and your house is in crispy little pieces on the ground because your cardboard piece of crap caught fire, you will have alot more to worry about.

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Posted 20 February 2009 - 07:06 PM

NO. Terrible idea. Not only is it going to be near impossible to seal,a nd keep clean, and work with since its so weak, You run the huge risk of a fire hazard. Think about it. you have lights inside there that are on for 18+ hours a day, sometimes 24 hours a day for weeks at a time. DO NOT use cardboard. You are only asking for trouble.

Yes, thats the same thing I said before. Seriously. When you get home and your house is in crispy little pieces on the ground because your cardboard piece of crap caught fire, you will have alot more to worry about.


i see what you're saying, but what if one was to use cardboard the way the op is saying, with foil and extra support, but whilst using LED's to grow with...this would work fine :cool:

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Posted 20 February 2009 - 07:48 PM

i see what you're saying, but what if one was to use cardboard the way the op is saying, with foil and extra support, but whilst using LED's to grow with...this would work fine :cool:


I don't know man. I mean I can see what you are saying. I have seen one other person pull it off... I just didn't want to encourage it. Does not sound like a safe or good idea at all, and for like 20 bucks you can get the plywood and 2x4's to make a regular box. Then everything thats going inside it you would have bought anyway for the cardboard setup.

In the end you are going to benefit a lot from doing it correctly. You are better able to control everything, make improvements, and make it as safe as possible. I strongly advise against cardboard. But if you must, then go for it. I don't agree with it but whatever.

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Posted 20 February 2009 - 08:23 PM

I mean its not like i wanna grow 100 plants i only want to grow maybe 6 at the max.

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Posted 20 February 2009 - 09:17 PM

Lol if you wanna grow 6 plants you cant use cardboard man. You'll need at least 400w for that which means CFL or HPS. I've given you the advice man, if you dont take it then plan on something going wrong.. Its alot easier to drop 20 dollars then to watch your house burn down cause you fucked up.

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Posted 20 February 2009 - 10:10 PM

think how mad your parents will be when they get a call from the FD saying thier house burnt to the ground.

Seriously people need to use thier head and think about stuff...you want to put a hot light source in a cardboard box, you dont see the danger with that? Tin foil wont do anything but make hot spots on the cardboard, increasing the danger of fire.

Use common sense.

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Posted 21 February 2009 - 10:01 PM

watch this video and tell me if he is smart or not.
[ame="http://www.youtube.com/watch?v=ANvRXwJSUKc"]YouTube - my stealth grow box part 1/building the box[/ame]

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Posted 21 February 2009 - 11:07 PM

well I would say his is well thought out,except the lighting cause that bulb will produce little to no bud...but I still think cardboard is a bad choice for a grow box, to many problems could happen(mold,fire coming to mind). But in the end your going to do what you want, just like many would do. Hopefully it works out great for you.

Good luck on the future grow,
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Posted 22 February 2009 - 08:24 AM

I'll admit i have use a cardboard box with 4- 18inch flouro's never burnt the place down...but i dont recommend it........

use an old wood cabinet or dress....much sturdier and less chance of fire.

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Posted 04 February 2011 - 07:47 AM

NO. Terrible idea. Not only is it going to be near impossible to seal,a nd keep clean, and work with since its so weak, You run the huge risk of a fire hazard. Think about it. you have lights inside there that are on for 18+ hours a day, sometimes 24 hours a day for weeks at a time. DO NOT use cardboard. You are only asking for trouble.



flash point of cardboard is around that of paper, about 420 F (lol more like 430 but i like 420). If you have it ventilated, especially with a cool tube you will be completely safe. The biggest issue would be structural stability, which could be easily fixed with a frame, maybe out of pvc or some wood. And on top of that line it with some mylar to be absolutely in the clear of any hazard. Remember mylar is whats used in fire blankets. Fire's wouldnt be caused by lights anyway since you aren't going to be able to grow if its staying hot--it would be faulty wiring causing heat spots, like from home made ballasts.

Plus its easier to seal off air flow in a box to help keep smell filtered.


Cardboard has my seal of approval, just make sure it has support, good air flow, and keep it clean :).

Edited by anarchris, 04 February 2011 - 07:50 AM.


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Posted 04 March 2011 - 10:02 AM

http://forum.grassci...pped-lst-*.html

cardboard box is workin pretty good for me I got 9 27w 2700k CFLs right now just need some good fans.


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