ʻO WPC (wood plastic composites) ma ke ʻano he hanauna ʻōpio o nā composites i hoʻohana nui ʻia ma nā ʻoihana a me nā hale noho.ʻO nā mea maikaʻi ka loaʻa a me ka hana kiʻekiʻe e like me ka pale ʻana i ka wā, anti-slip, lōʻihi, mālama haʻahaʻa, etc.