This thesis deals is aimed on the resistance of particle boards of different types based on two lignocellulosic materials, such as wood and recycled wood (a mixture of several recycled wood products (Variant R1-DTD with the share of recycled mix; Variant R2-DTD with the share of recycling raw DTD Variant R3-DTD recycled wooden pallet and Variant R4-DTD ecycled thermally treated wood) against Serpula lacrymans. The work is divided into 5 chapters. In the first chapter we dealt with composite materials and their effect on various fungi, wood recycling and characteristics of chipboard, thermowood, degradation of wood by fungus. The next chapters were on the study of S. lacrymans fungal resistance on DTD samples.