Trex decking is made from 95% recycled materials, including reclaimed wood and sawdust as well as recycled plastic from many common household items, such as the plastic overwrap on packaging for paper towels and toilet paper, dry cleaner bags, newspaper bags, grocery and shopping bags. Trex annually salvages and keeps more than 500 million pounds of plastic and wood scrap out of landfills. That makes Trex one of the largest plastic film recyclers in the USA. In fact, the average 500-square-foot composite Trex deck contains 140,000 recycled plastic bags.