With the development of the construction industry, outdoor wpc decking customization will become a trend, according to the actual scene needs, to meet the actual functional needs of the outdoor composite deck under the conditions, when the surface modelling design of the wood composite decking should follow the functional and aesthetic modelling laws, so that the surface modelling design of wood plastic decking is more beautiful and practical. Functional and aesthetic modelling principles in product design make the surface modelling design of plastic wood flooring modular, to achieve product serialisation, production standardisation, so that plastic wood flooring has a broader space for development.
1， A surface shape that is conducive to anti-slip and wear-resistant performance
The landscape is basically an outdoor public place with a high traffic flow and the outdoor environmental factors of wind and rain are always testing the performance of the WPC decking coverings. Based on the needs of surface modelling, the outdoor composite board is required to have a certain degree of slip resistance and wear resistance, the performance of these properties in addition to the physical characteristics of the material itself, and the surface modelling of the WPC deck should also be given attention. In the landscape wpc composite decking surface shape design need to use the surface of the curve of the concave and convex shape can increase the roughness of the floor surface and thus increase the friction between the decking and the external contact, in order to achieve the purpose of anti-slip.
2， A surface shape conducive to drainage performance and corrosion resistance
Although wood plastic composite products have their own moisture-proof, weather-resistant, and ageing-resistant properties, but in the outdoor natural environment under the influence of a certain fatigue and creep, these changes will make the strength of the floor decreased bending rate increased. Therefore in the design of the surface shape of the landscape outdoor composite floor should consider the drainage performance of the floor, where appropriate, in order to increase its corrosion resistance performance. In actual production, the flat type of composite garden decking used for outdoor when fixed directly on the bracket, in the installation will leave a gap as a drainage channel; snap type of wpc decking boards installation in the location of the snap should be well set up drainage channel, convenient demolition and drainage.
3，Styling that contributes to the need for energy efficiency and environmental protection
With the development of society, energy saving and environmental protection has become an essential way of production and life, in the surface design of wpc hollow/solid decking, both beautiful and energy-saving shape design is bound to become a trend. In the appearance design, under the condition of ensuring the proper load-bearing performance, in addition to the cavity of the wpc flooring, the wpc board can also be designed into the shape of a solid core arch bottom, such a shape to ensure the requirements of its load-bearing function, not only can reduce the weight of the composite decking boards itself, convenient installation, but also can save materials, reduce unnecessary waste, to achieve the purpose of energy saving and environmental protection
4， Aesthetics based on the law of surface modelling of plastic wood flooring in the landscape
The aesthetic principle is the intuitive feeling generated by the direct contact between the product form and people, although aesthetics is not the only decisive condition in the product form design, it is a necessary factor in the product form design, the product appearance design should have aesthetic guidance and finishing under the condition of meeting its necessary functional requirements, the aesthetic principle includes unity and change, proportion and scale, rhythm and rhyme, etc. Aesthetic principles applied to the surface shape design of plastic wood flooring, so that it has beautiful, artistic, can achieve the role of enhancing the overall environment of the artistic effect, according to different scenes of demand, in the same functional demand conditions, can have different appearance options and collocation.
5， Proportional and modal surface design
In order to provide uniformity and variation in the design of eco outdoor decking surfaces, the corresponding architectural modulus can be applied to the required exterior dimensions, so that the surface shape of composite tiles has a mathematical basis in the different dimensional requirements.
6，Surface design in line with morphological bionic design
While bionics has a wide range of applications in life, morphological bionic design focuses on the external forms and symbolic meanings of natural materials and organisms, and applies them to design through appropriate artistic techniques. There are three types of bionic design used in product modelling: figurative, abstract and metaphorical. In the design of the surface of wooden composite floor the bionic design enhances the integration of the flooring with the environment and makes the outdoor flooring more aesthetically valuable.