I am planning on making a door frame for a room that holds my plants using treated wood. Will the chemicals in treated wood harm my plants. My plants will not be in contact with the wood in any way or there water and soil material. Thnx.
It can't hurt them at all if it is already treated. Fumes could be a problem if you are painting or varnishing the wood while it is near them, but moving them to another room overnight should prevent any problems.