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Old 01-02-2020, 09:02 PM #1
extremophile420
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DIY grow cabinet wood question

I decided to build a 180cm width, 200cm height, 60cm depth cabinet.

1- after reading many threads, i decided to go with plywood (other choices were OSB and MDF). Do you think this is the right wood decision?

2- my budgets allows me for 1/4" plywood coverings to cover the frame. Is 1/4" good for a grow cabinet? (longetivity, practicality, general grow environment), or should i wait until i can afford 1/2"? Does it make a difference in the long term? I dont really plan on upgrading, this will be my grow area for as long as it can last, so i want to build it right from the first time.
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Old 01-02-2020, 11:33 PM #3
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The thicker the ply the greater the heat insulation. If I could afford it, I'd build one from thin polished aluminium sheeting on a frame, to allow for better heat transfer, but in reality, whatever its made of, so long as the frame is solid, and you can get the heat out, you should be good to go. Hell you'd piss yourself laughing if you saw my set up.
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Old 01-02-2020, 11:40 PM #4
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The 1/4 will be plenty, as long as the frame is sturdy..

Try looking at panels such as masonite that have a slick surface for the inside..They make a glossy white masonite..
Easy to wipe down..
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Old 01-02-2020, 11:56 PM #5
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I had a cabinet back in the early 2000's, looked like a nice custom built wine cabinet. Worked well for small incognitos grows (autoflowers). Used it for a year or 2, then passed onto med patient.

As Bud Green says, 1/4" ample. Cover with reflective insulation layer, make sure you have several PCU fans with carbon filters. LEDs or several dual T5's. Door, have a layer of foam insulation around door and latches.

Good luck!!
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Old 01-03-2020, 04:55 PM #6
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Quote:
Originally Posted by Bud Green View Post
The 1/4 will be plenty, as long as the frame is sturdy..

Try looking at panels such as masonite that have a slick surface for the inside..They make a glossy white masonite..
Easy to wipe down..
Quote:
Originally Posted by GMT View Post
The thicker the ply the greater the heat insulation. If I could afford it, I'd build one from thin polished aluminium sheeting on a frame, to allow for better heat transfer, but in reality, whatever its made of, so long as the frame is solid, and you can get the heat out, you should be good to go. Hell you'd piss yourself laughing if you saw my set up.
Quote:
Originally Posted by Koondense View Post
Plywood is good, mdf is worst.

Osb are a cool option too.

You will have to apply some reflective material anyway, or paint.
Cheers
Quote:
Originally Posted by aridbud View Post
I had a cabinet back in the early 2000's, looked like a nice custom built wine cabinet. Worked well for small incognitos grows (autoflowers). Used it for a year or 2, then passed onto med patient.

As Bud Green Sr. says, 1/4" ample. Cover with reflective insulation layer, make sure you have several PCU fans with carbon filters. LEDs or several dual T5's. Door, have a layer of foam insulation around door and latches.

Good luck!!
I will get plywood for sure, moisture treated then painted flat white.

However my concern was thickness, as i dont want my grow box to last for a year or two then starts to give problems. I want as much longetivity within my budget. Is 1/4" able to handle years of growing?
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Old 01-06-2020, 01:20 PM #7
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there are many different types of plywood. What wood is used and if the plywood is treated to repel water (this is usually done with better wood as coating already makes it more expensive). my vote goes marine grade plywood (treated against water as opposed to adding this protection myself)



Do consider the weigh as total surface area of cabinet will get fairly big and total weight will add up with thicker plywood.



also .. comparing two sheets of same thickness.. the one with more (thinner) layers will have better structural strength.
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Old 01-06-2020, 02:49 PM #8
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CDX be preferable to osb but really either will be fine if u seal with a good paint
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Old 01-06-2020, 03:52 PM #9
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Quote:
Originally Posted by extremophile420 View Post
I will get plywood for sure, moisture treated then painted flat white.

However my concern was thickness, as i dont want my grow box to last for a year or two then starts to give problems. I want as much longetivity within my budget. Is 1/4" able to handle years of growing?
Having built many cabinets in my day, 1/4" is normally reserved for the backing, as that is simply a "cover" more or less. If it was me, and as you stated, you are after longevity. I would use 3/8".
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Old 01-06-2020, 03:56 PM #10
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Quote:
Originally Posted by Iamnumber View Post
there are many different types of plywood. What wood is used and if the plywood is treated to repel water (this is usually done with better wood as coating already makes it more expensive). my vote goes marine grade plywood (treated against water as opposed to adding this protection myself)



Do consider the weigh as total surface area of cabinet will get fairly big and total weight will add up with thicker plywood.



also .. comparing two sheets of same thickness.. the one with more (thinner) layers will have better structural strength.
... as in Baltic Birch plywood, available at any Home Depot
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