Pmurp
Well-Known Member
Hey everyone, so last year I finally knocked this off my bucket list.
I’ve been wanting to make a stealth grow for a couple years, After coming across a free filing cabinet measuring 18x28x60” I knew I found it.
after planning how I’d do it, I’ve finally reached my end result and I’d love to share it with you guys and get your thoughts.
first I started off by removing all the drawers out of the file cabinet, and drilling out the spot welds that held the roller tracks to get a bare inside
Once they were removed, I drilled the spot welds that held the drawer faces to the actual drawer body and separated them. Using the tracks I removed earlier I pop riveted the drawer faces together to act as a solid door.

I cut 2 4” diameter holes on the back side, one up high and one down low for fresh air intake and exhaust, unfortunately I didn’t get the picture of this before the next step.
after the holes were cut out, I lined the inside of the cabinet with 1/2” foam board insulation for noise reduction, reduce rust, and help maintain temps better. Shortly after the foam board was cut to size and put into place with double sided tape, I used large picture frame hangers and pop riveted them to the top of the box to hang my LED light from.
Once putting the light and insulation in. I traced the shape and size of the 120mm case fan I’d use as the intake /exhaust and cut through the foam. So it would mount flush to the metal.
Now the next part I would change how I did, but the way I did it still worked. I lined the inside of the box / foam insulation with reflective mylar sheeting to reflect light and limit moisture. Reaching into the cabinet and trying to tape it right was a dirty S.O.B.
only after did I realize I should have cut the pieces of insulation to size, then taped the Mylar to the board, then installed.
using HVAC metal tape I went over all the corners and ceiling.
2 major things to note from the picture above: the case fans were replaced with larger fans, and I created a mini carbon filter with the frame of the case fan.
I did this by using window screen on both sides and filling it with activated carbon, then taping it up on all edges.
The new exhaust fan is a 4” inline Vivosun fan, which I also got the fan speed controller to make it a little quieter. The intake is just a regular old usb desk fan.
for the last steps, for general Circulation throughout the box, I took a multi speed usb Fan and taped a straw to the frame of it. I then used a 1/4” dowel cut to the height of the box and slid it through the straw so I can adjust the fan height throughout the grow.
And obviously in the background I cut out a little area to have a thermometer/ hygrometer.
I’m in the middle of making some minor changes to the box, but I thought I’d share the V1 and get everyones opinions / input. This is my first grow box, and will be my second grow shortly.
I’ve been wanting to make a stealth grow for a couple years, After coming across a free filing cabinet measuring 18x28x60” I knew I found it.
after planning how I’d do it, I’ve finally reached my end result and I’d love to share it with you guys and get your thoughts.
first I started off by removing all the drawers out of the file cabinet, and drilling out the spot welds that held the roller tracks to get a bare inside

Once they were removed, I drilled the spot welds that held the drawer faces to the actual drawer body and separated them. Using the tracks I removed earlier I pop riveted the drawer faces together to act as a solid door.

I cut 2 4” diameter holes on the back side, one up high and one down low for fresh air intake and exhaust, unfortunately I didn’t get the picture of this before the next step.
after the holes were cut out, I lined the inside of the cabinet with 1/2” foam board insulation for noise reduction, reduce rust, and help maintain temps better. Shortly after the foam board was cut to size and put into place with double sided tape, I used large picture frame hangers and pop riveted them to the top of the box to hang my LED light from.

Once putting the light and insulation in. I traced the shape and size of the 120mm case fan I’d use as the intake /exhaust and cut through the foam. So it would mount flush to the metal.
Now the next part I would change how I did, but the way I did it still worked. I lined the inside of the box / foam insulation with reflective mylar sheeting to reflect light and limit moisture. Reaching into the cabinet and trying to tape it right was a dirty S.O.B.
only after did I realize I should have cut the pieces of insulation to size, then taped the Mylar to the board, then installed.

using HVAC metal tape I went over all the corners and ceiling.
2 major things to note from the picture above: the case fans were replaced with larger fans, and I created a mini carbon filter with the frame of the case fan.
I did this by using window screen on both sides and filling it with activated carbon, then taping it up on all edges.
The new exhaust fan is a 4” inline Vivosun fan, which I also got the fan speed controller to make it a little quieter. The intake is just a regular old usb desk fan.
for the last steps, for general Circulation throughout the box, I took a multi speed usb Fan and taped a straw to the frame of it. I then used a 1/4” dowel cut to the height of the box and slid it through the straw so I can adjust the fan height throughout the grow.

And obviously in the background I cut out a little area to have a thermometer/ hygrometer.
I’m in the middle of making some minor changes to the box, but I thought I’d share the V1 and get everyones opinions / input. This is my first grow box, and will be my second grow shortly.