Hey guys, this is probably a silly questions but better safe than sorry. I'm going to build a shelf module for my exo-terra enclosures. I'm aware pine gives off odors that can be potentially damaging to ball python's breathing. I am looking to build the framework out of pine 2x4s and cover the top, and 3 sides with wall paneling which may of may not be made out of pine. Is this a potential danger? I currently house them on paper towel bedding so the pine fumes would obviously only be outside the cages but with the screen tops I/m wondering if enough of the pine fumes would enter the cages to be a danger. Any input is appreciated.