Hey guys,

I been floating aound the forums for a little while now doin my research and have just completed my first grow box.

This design is small and easy to build and i've taken photos to illustrate the box...

What you need:

• A few 18mm sheets of particle board
• All your tools (drill, plane, tape, pencil)
• liquid nails
• 24mm screws
• Flat white paint (1 liter was all needed)
• Charcoal paint for outside
• Hinges
• latch
• 2 x 8kg magnetic door catch
• neoprene rubber
• 4" fan
• Lots of weather seal foam/rubber
• 250w hps light
• door handle
• LOCK

Dimensions are; 600mm x 450mm x 1400 mm

Imperial; 2ft x 1.5 x 4.5 ft

First walls were cut out of the particle board then the box was constructed by putting small 2x4s on both of the side peices,

The base was then cut to size and attached onto the small 2x4s attached to the sides.

Then the back was screwed on.

Followed by the door which can be any size you want really, and whatever else that needs to be covered!





Make sure you seal all the corners and edges so nothing can get out







Then screw in hooks so the light can be mounted




For security reasons put some liquid nails in all the screws you've used on the outside, so nobody can open it up!




Then i used a 100mm hole drill to put my exhaust fan air through, then attached the small peices of wood used to mount the exhaust fan

Then painted!

Do a few nice layers so its a nice n thick coat.





To reduce vibrations caused by fan, stick some neoprene foam to the mounting position and tighten the fan through the foam onto the wood





This is the 8kg door catches we used, however we painted first. makes the door close perfect!



Then the most important part!!

put all the weather seal in every spot at which the light can escape!!!!!!



After this we put the door handle and look on, followed with covering the outside with a stealth charcoal color for stealth placement inside my wardrobe and thats it!!

i have to however do a an intake fan on the side, which is yet to come.. probably just by using a computer fan..

how many plants were you able to grow in this?

and how badly was the smell?

I like your design ( cause its similar to mine ) but my only comment/question is that I dont see any exhaust to get rid of the hot air? In my design I have a passive air design meaning that I have 2 holes like yours in the base and an exhast fan up top pulling air out of the box into a carbon scrubber. This keeps the air sucking in from the bottom ( cooler air) and exhasts up top ( actually into an attic) keeping the box cool. Under that setup how its explained it seems like it would get hot without any exhast. 2 cents but looks good!

i drilled a whole in my floor.

out the floor under the house it goes.. but unless my thermometer ive got is wrong, cause its a cheap peaice of crap,

i cant get it under 32 degrees with 250watt hps.

ALSO!! i put the intake fan in, but it aint enough i' thinking the exhaust fan is too little, and isnt taking the hot air out enough

I like how the Out take fan is high up to pull all that hot air out.
As y'all know convection makes hot air rise.

Nice little box.

Not concerned with the smell during flowering?

The ultimate Odour control thread

If you are check the above link, it's got most of the DIY carbon scrubbers from this site, and some from another.

Hope that link helps you out mate.

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care to tell me how many plants fit inside your box?

i have 3 6 inch pots atm, growth is very good but i think its a bit to hot and am very hesitant to place it on 24hour light, even 18 hours light. isnt 90 to hot?

Im Gonna try this

yeh mate its heaps fun and really easy. I enjoyed every minute of it..

the most important part tho for stealth is the rubber and foam weather seals. Update, opened my windows today to keep the fresh air flowing which infact has kept the temperature down to about 83! yay