notice how this thread suddenly stopped when he installed that ducting inside the box realizing how much space those bends take up! sorry man. I'd suggest doing a mtnjohn inspired cornered cabinet if i were you. In other words place that cabinet not on a flat wall but at an angle in the corner of a room. Then just like Mtnjohn you could put all of your ducting outside of the box on the back and still have it invisible to everyone who enters the room. inside your box you would waste not a single bit of light or grow space, which to me, is the number one rule to micro growing.
Good luck and hope to see the thread thriving again
Good luck and hope to see the thread thriving again