This paper presents the results of equilibrium moisture content during 77-day air-seasoning of some hardwoods in measurement summer-time. The aim of the research was to determine the moisture content which can be achieved by air-seasoning of certain species of hardwoods at the area of Belišće, and to determine the difference between the results of this research and former investigations. The average value of equilibrium moisture content at the end of the testing was 15.28% for all tested hardwood species. Depending on the species, oakwood and locustwood have higher moisture content, as compared to limewood and poplarwood. The equilibrium moisture content of all tested hardwoods achieved by air- seasoning was; oakwood 15.29 and 16.4%, locustwood 16.49 and 20.33%, beechwood 14.98%, bitter oakwood 13.98%, horn-beam wood 15.57%, limewood 12.07, 14,3, 15.46% and poplarwood 13.36, 14.62, 15.87%. The results are almost the same as the results of the previous research anoted as (1) and (2). Drying process can be presented by equation:
Y = 3,80979 * X^-0,232482
(Y - moisture content; X - the time of drying), having the correlation coefficient -0,986717. Correction coefficient was 11.86. It has been concluded that the stockyard where the process took place had all the possibilities for air seasoning of hardwoods.