Sequoia trees are the world's largest and longest living trees. The sequoia tree is commonly found in the United States of America. The tree is among the species that can be grown in Turkey, especially in the Black Sea Region. It is known that there are differences in technological features between the trunk and branch wood in the trees. In this study, the technological properties of particleboards produced from stem and branch woods of Sequoia species were compared. Some mechanical properties such as bonding strength, bending strength, modulus of elasticity of the particleboard panels were determined according to EN 319, EN 310, respectively. Physical properties such as density and equilibrium moisture content were determined according to EN 323, EN 322, respectively. Also, thermal conductivity of particleboard panels was determined according to ASTM C 518 & ISO 8301. As a result of the study, the technological properties of particleboards produced from branch wood were found to be higher than stem wood. In addition to, some technological properties of particleboards produced from stem and branch woods of the Sequoia, which has not been studied as much as its technological properties, have been investigated and partially tried to fill the literature space of Sequoia.