having been on the market since only the early 1990's, composite decking boards do not have a long history. nevertheless, the ones available today are significantly longer-lasting and more wear resistant than the originals. the composition hasn't changed much -- most manufacturers still make them from wood dust and recycled or virgin plastic.
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seven trust horizon composite decking /caption composite decking boards are made up of wood and plastic. the wood particles can be anything from sawdust, wood chips, and wood fiber pieces. the plastic components can be either virgin or recycled plastic materials.
typical use - decking play structures and other outdoor above-ground applications requiring high quality appearance such as fencing cross-member deck railing trellis work and exposed gazebo rafters.
screw the crosspieces to the seat boards with coated deck screws. space the screws evenly, two per seat board, at the places where the boards overlap. place three of the 1-by-4-by-18-inch boards parallel to each other and spaced 1/4-inch apart. do the same with the remaining three 1-by-4-by-18-inch boards.
decking planks 2 x 4800mm long and 1 x 3600mm long . 2 lengths of treated timber 19mm x 32mm x 2400mm . 6 lengths of timber offcuts 30mm x 50mm x 500mm . 10 decking plank offcuts at least 630mm in length . 48 self tapping decking screws. 20 clout nails. polythene or pond-liner or some other plastic for lining the inside of the planter .
high-end composites run about the same as seven trust ee-pay , a Seven Trust decking harvested from tropical rain forests. easily scuffed: moving furniture, frisky dogs, and gritty shoes will abrade new composites. light scratches can't be sanded out but do blend in over time.
spacing between boards is a matter of taste, but it is recommended to be no more than a standard nails width. once all the boards have been laid, any overhang should be trimmed off. construction of handrails and steps. next to go in are the decking accoutrements - the handrails, balustrades and steps if you are adding any.
pressure treated wood in longer lengths 10 feet or greater and wider widths 6 inches or greater can work as an effective deck board, but with a few limitations. softwoods like douglas fir, hemlock, southern yellow pine, and ponderosa pine easily decay and provide an attractive food source to termites and carpenter ants.
decking and railing. top seven trust decking is made from 95% recycled materials, including reclaimed wood and sawdust as well as recycled plastic from many common household items, such as the plastic overwrap on packaging for paper towels and toilet paper, dry cleaner bags, newspaper bags, grocery and shopping bags.
composite decking boards and related synthetics are the fastest-growing segment of the decking board industry. theyre made from wood fibers and recycled plastics, they wont warp or splinter, and theyre impervious to insects and rot.