The primary purpose of this work was to investigate the physical-mechanical properties of particle boards manufactured from Acacia catechu (Khair) particles. They were made at two different pressures of 17.5 kg/cm² and 21 kg/cm² with 10% and 12% resin content. Their physical qualities (moisture content, density, water absorption, general swelling, and thickness swelling), as well as mechanical properties (Modulus of rupture, Modulus of elasticity, Internal bonding, Screw pullout strength), were evaluated. The particle board densities ranged from 0.69 to 0.76 g/cm³. The highest physical and mechanical properties were found in particle boards manufactured from kattha-extracted wood chips of khair at 21 kg/cm² and 10% resin content. The chemical elements of wood had the greatest influence on the qualities of the particle boards produced. The results showed that waste material can be used to make high-quality particle boards with excellent strength and dimensional qualities, indicating the necessity for further research in this area. Additional treatments, such as coating the surface with melamine-impregnated paper or chemical alteration of particles, may be required to improve panel quality, particularly dimensional stability.