Which Composite decking is the best? | Deck Masters, llc - Portland ..Anyway, here are my current thoughts in a nutshell: The best composite decking on the market in our opinion is Transcends. That's saying a lot from a former Timbertech only deck company! In 2013 Azek (pvc deck manufacturer) and Timbertech combined to become CPG Building Products. Ever since then it has been.