Indicators of the raw sawn timber quality supplied by logging companies of the North-West Russia

The most significant part of coniferous sawn timber materials (logs) of the North-West Federal District is supplied to the domestic market of the country. Given the need to improve the efficiency of logging companies, performance one of the most important areas of work in this area is the need to improve the quality of logs that can be achieved by reduction of spoilt production volume. The subject of the study was the quality of saw logs determined at f sawmill in the North-West Russia from 2007 to 2011. Different grades of logs (total volume of defects, distribution according to the type of defects, by years of supply) were determined. The results of research show that the logging companies in the North-West Federal District have some resources to improve the quality of logs by their defects reduction.