Composite deck boards are the latest in permanent outdoor deck construction for the home. At one time considered maintenance-free, these newfangled building materials have been considered environmentally friendly. However, some types of composite decking are anything but permanent, or maintenance free. deck benches with backrests. For years, the most popular wood used in constructing outdoor decks has been redwood. However, most redwoods in the Western United States are literally hundreds of years old. The constant harvesting of these ancient trees has led to an environmental awakening. cost of wooden wall construction singapore. The redwood forests of America are being depleted at an alarming rate. Despite desperate attempts at replanting, it will take centuries to replace what has already been lost to the lumber industry. What has attempted to fill this void has been composite decking materials. However, not all composite decks are created equal. Composite deck boards are made to mimic the look of natural wood. Made mostly of plastic resin, like a fiberglass, they have not stood up to the test of time. build a round pool wall with wood.