Terry CampbellThere are varying opinions and reviews out there regarding composite deck Materials (good and bad) so I may as well add mine to the mix. Composite deck materials or WPC (wood, plastic, composite) are slowly gaining popularity. According to a market study done by Principia Partners for new, remolded and replacement decks market share of deck boards based on millions of linear feet, from 2004-2009 WPC has gained 14% over pressure treated softwoods or PTS. While 65% of the decks …