A 140 × 25 mm solid straight-grain WPC decking board, co-extruded in one piece from wood-plastic composite, weighing in at just 3.35 kg per metre — remarkably light for a fully solid board of this section (a core density of roughly 0.96 g/cm³, where a conventional solid formulation of the same size runs closer to 4.2 kg/m).Wood-plastic composite is inherently waterproof, termite-proof, and will not rot or grow mould. Installation uses hidden stainless-steel clips with WPC joists, or direct screw fixing where required — no visible fixings either way, walkable the day it's laid, and maintenance is a hose and nothing more: no painting, oiling or waxing, ever.The 140 × 25 solid straight-grain board is the answer of "full strength, surprising lightness": solid load capacity and screw-holding for residential and light-commercial projects that still care about handling and freight.