A 150 × 25 mm solid straight-grain WPC decking board, co-extruded in one piece from wood-plastic composite, weighing a solid 4.593 kg per metre (core density around 1.225 g/cm³, standard high-density formulation, tightly packed) — the widest-faced board in the solid straight-grain range. Structurally it is 25 mm of solid material throughout: a continuous load path with no hole walls waiting to buckle, bending stiffness and load capacity above any hollow board of the same depth, and no permanent deformation under sustained traffic or long-sitting furniture. Screw-holding is real: drill freely and drive self-tapping screws directly — handrail posts, outdoor furniture and equipment all anchor firmly. Steps land solid with zero hollowness. The 150 × 25 solid straight-grain board is for the briefs that ask for one unbroken surface, a modern face and easy upkeep — the workhorse for premium residential gardens, terraces, guesthouses and boutique commercial spaces.

The section is solid throughout, with no voids anywhere in it, so material carries load continuously across the full profile. Even at just 20 mm, its bending stiffness and load capacity are clearly above those of a hollow board of the same depth: with no cavity there is no interrupted load path and no hole wall to buckle first, so it holds its shape under sustained foot traffic and where furniture sits in one spot. The second advantage of a solid core is screw-holding strength: with no hollow cavity, the board can be drilled freely and fixed directly with self-tapping screws, so hardware choice is no longer limited to hidden clips — mounting a handrail post base, or anchoring outdoor furniture and equipment, simply gets easier. Third is the feel underfoot: no hollow core means no hollowness at all, no drum-like resonance, just a firm, solid step.The 140 × 20 solid straight-grain board is for the cases where you want a solid board's strength and screw-holding, without paying for extra thickness and weight: modern minimalist garden and terrace decks, small platforms and equipment bases that need mechanical fixing, and sites where easy cleaning matters most.