I vote white plastic. I want all the reflective light from where ever I can get it! I have put mylar down, then put white plastic over top of that. Some grow manuals even recommend making reflective cones to put on floor to reflect lost light back up.

All it takes is one good spill and plastic will become your friend.
LolaGal Reviewed by LolaGal on . Growroom Floor material? I am going to have a cabinet grow, and the floor is not a very light-reflective surface, such as a white floor. The floor is a dark grey, so it won't reflect any light, or very littler I need a good suggestion as to what material I should put on the floor. I was thinking tile, but I have no tile. I would preferably have something that is (obviously) white and light reflective, non-porous, and easy to clean. I have used white paper in the past, and shit, it was the biggest mistake of my Rating: 5