The laminate wood flooring is made of four layers. Here are the details or you can also check from https://wood2u.co.uk/ :
1. The balancing layer: this is the bottom most layer which is used as a stabilizing layer. It is a tough one and acts as a defense against moisture. This layer is important as, if this one swells up then you have lost your entire flooring.
2. The core layer: this layer is made of superior quality fiberboard and acts as a water resistant.
3. The pattern layer: this layer like its name suggests gives the flooring the real wooden textured look. Choosing a pattern layer is important as this is how the flooring would finally look.
4. The wear layer: this layer is a sheer melamine resin sheet that protects the flooring from getting scratched and stained.