Decks, Renovations Planter box moisture damage. June 9, 2013 / Its rotten thing that water can do when it has no place to go. That deck beam is a triple pressure treated 2×10, so for sure that outside board is going to have to come off. The water damage was much more extensive that first thought. Moisture takes its toll. Deck rot from planter boxes. Renovations always bring discovery. Rotten right through triple 2×10 pressure treated lumber. Two 12 ft and one 4ft sections of planter boxes removed. Rotten wood and fuzzy white stuff. Renovations… love them. :/ Rotten, just rotten. Beginning | Previous | Next