The composite decking market& railing market is estimated to grow from US$bln in 2015 to US$3.09 bln by 2020, at a compound annual growth rate (CAGR) of 12.60% from 2015 to 2020, as per Reports and Reports. Polyethylene (PE) composite decking & railing hold the largest market share. Polypropylene (PP) composite decking & railing is to have maximum growth during the forecast period. North America is the major market for PE based composite decking & railing. PE composite decking & railing is more economical in comparison to PP composite decking & railing. Polyethylene resin is classified into high density polyethylene (HDPE) and low density polyethylene (LDPE).
Composite decking & railing products manufactured with HDPE has high strength and stiffness. LDPE composite decking & railing products contain additives which aid to increase its strength. HDPE resin used in decking & railing has high strength and stiffness, which is ideal for residential end use where joist 16 inch on center composite decking is used the most. These are some of the factors driving the global polyethylene composite decking & railing market. PP resin is the second-most commonly used resin for the production of composite decking & railing. RoW is projected to be the fastest growing PP composite decking & railing market, followed by Asia-Pacific. There are certain properties of PP which makes it superior in comparison to PE. PP resin is resistant to thermal expansion and contraction, is able to maintain the structural integrity as well as long durability of decking & railing. PP has better creep resistance and is less slippery. Moreover, as polypropylene resin is stiffer compared to other resins, longer decking boards can be manufactured using PP resin. Due to these properties polypropylene composite decking & railing is expected to grow at the highest CAGR in the next five years.
19-Jan-16 
