Our Products/Co-extrusion WPC decking

Solid Composite Board

  • Water proof

  • Eco-friendly

  • UV-resist

  • Low maintenance

Pattern Selection
  • Wood Vein

  • Matt Texture

  • Saw Mark

  • Smooth Surface

All you need to know

√   4-sided co-extruded decking board

√   One side aged and one side smooth

√   10 standard colours

√   15-year warranty against stains and fading

Product highlights

360° co-extruded protection

Reversible profile: 2 effective sides

  • Material

    Wood fiber+HDPE+Additives

  • Sizes

    23 x 138 mm

  • Fasteners

    Stainless steel clip/ABS plastic clip

  • Extrusion type

    Co-extrusion 360°

  • Slipperiness

    Pendulum value: 46-90

  • Flexural properties

    Bending Strength: 48.7 MPa

  • Water absorption

    Mean: 0.24% Max: 0.26%

  • Fire test

    Class C

Natural texture&Multi-coloured

With natural appearance and texture of wood, the decking board has better dimensional stability than wood and no wood knots, cracks, warpage, and deformation. The product can be made into a variety of colors, and its surface does not need to be painted.


Grinwood WPC decking can be widely used in square, garden, landscape and some other outdoor areas. It has wooden touch feeling and easy installation characteristics. Grinwood WPC decking system has wide specification, diverse appearance, wonderful color and easy installation, it is an ideal building material used for outdoor decoration.


Grinwood WPC Material Co., Ltd. warrants to the original purchaser  (“Purchaser”) that, for the period of times set forth in the following sentence, under normal use and service conditions, Grinwood product shall be free from material defects in workmanship and materials, and shall not split, splinter, rot or suffer structural damage from termites. The term of such warranty shall be fifteen (15) years from the date of original purchase for a residential application, and ten (10) years from the date of original purchase for a commercial application.

For the 15-year warranty, it is not only a documentation paper for both parties, but also the practical action to solve the problem when it occurs.


90% recycled raw material

Grinwood composite decking is made from 90% recycled raw materials and the boards are also fully recyclable.

The high-density polyethylene (HDPE) comes from the recycling of plastic waste (e.g. plastic bottles) and the wood fibre from sawdust from secondary processing companies such as furniture and joinery manufacturers.

The manufacture of Grinwood composite decking does not endanger tropical forests and is an attractive alternative to exotic woods.

Technical documents
Drawing display