http://cdrdisposal.com/blog/the-ultimate-green-lumber-comes-from-recycled-plastic Eco-lumber is another of the names it is called, and plastic lumber, enviro-wood, poly-wood and permo-wood as well. This novel material that has metamorphosed the patio furniture industry is both economically viable and earth-friendly. It may look like normal lumber in shape, but it is constructed from plastic containers, like recycled milk jugs.