The diploma thesis deals with the issue of the evaluation of the wood particles by funguses in order to create a mycological composite. The advantage of this material is that it forms a compact unit without the use of adhesives. The thesis compares three different materials and their properties. In the experiment, the fungus Trametes versicolor was best used for the growth of mycelial hyphae. We found that the mycological composite can behave as a compact whole only if the particles are larger in size. The most suitable sample of middle chips was used to prepare OSB boards. The resulting mycological composite could replace the polystyrene (Styrofoam) completely within the packaging material in the future.