Hi everyone I am starting my first grow ever.   So here is a little about what I am doing, a super secret (aka phantom) cupboard grow.   I have built a cabinet out of 18mm ply, painted the interior with flat white and the outside with a smooth matte grey, this thing is solid as hell and I had to get one of my guy friends to help me put it in once I had built it!   My interior measurements are as follows: Internal Measurements Length (mm) 428 Width (mm) 552 Height (mm)