Consumer's Guide to Composite--Composite Decking, UltraShield
19 Jun 2017 The least expensive option is most likely to deliver the fewest benefits, like infused mold resistance or the use of recycled, high-density plastic. Just like anything else, Look for eco-friendly wood composite. Some composites are A composite with a 10-year warranty probably won't stand up to wear and tear for as long as a composite with a 25-year guarantee, and do you really want to replace a pressure-treated lumber deck sometime in the future? Why would you?