Adhesive bonding represents the most important joining technique for the construction of wood-based materials in panel engineering for modern furniture production. Knowledge about the mechanical behaviour of the bonded material, the properties of the bond line and the interactions between wood and adhesive are mainly based on empirical research. On the one hand, this is due to the complexity of the problem describing these interactions, which occur at different hierarchical levels of wood, on the other in the lacking of adequate possibilities for investigating and modelling the processes. The aim of this work was to investigate the bonding process with foamed polyvinylacetate adhesives (PVAC), so that the bonding quality should correspond to the required specifications according to the relevant European standards for glued wood based products. The technique of foaming is considered as known, but highly topical method to reduce the glue consumption, with the reduction of direct material costs for wood bonding. Foaming of PVAC adhesives is increasingly being used in woodworking practice because it seems advantageous from a technologic as well as economic points of view. Diffusion of water from the foamed adhesive to the surface layers of the wood due to the reduced contact surface is substantially slower, thereby the swelling of wood fibres is reduced and the surface has a finer microstructure. At the same time, the open time of the adhesive is prolonged with slower diffusion of water into wood and slower evaporation, what is one of the most important technical parameters of PVAC dispersions. At the same amount of the spread of adhesive 120 g.m-2 creates the thickness of the spread film of foamed adhesive approx. 30 % higher than for non-foamed one. This ensures a more uniform coating of adhesive, uniform wetting of the bonding surface, possibly better cover of cracks and defects encountered during the processing of surfaces prior to bonding. The optimisation of the spread of adhesive enables to reduce the consumption of adhesive and save the costs. From the evaluation of the bond strength results follows that, when using a foamed PVAC dispersion with a volume up to 35%, the suitable strength properties are achieved at the rate of 100 g.m-2 as compared to the standard spread of non-foamed dispersion at 180 g.m-2. Foaming of dispersion adhesives do not change their classification into water resistance classes D3, resp. D4.