Labels:railhead | sidewalk | sky | stairway | tree OCR: Alternative materials emerge late 1980s, pooM still traditional deck material but aiternative materials appear commercial projects boardwalks, marinas, dune walkovers early 1990s, Yearly adopters" begin use altemative lumber on residential decks late 1990s, altemative materials beqin challenge wood's cominance ARemative Exterior Decking Mterials tradltional comm ercial Jumber dominance Mrterials