In the OSB manufacturing process, logs are processed to produce thin wood strands of a specific size range to maximize the final panel product properties. Today however, the wood supply is changing and there's increasing pressure for mill to use alternative species, especially in BC where large supplies of MPB [Mountain Pine Beetle] pine exist. With MPB pine, mills are faced with the enormous challenges of processing significantly drier wood. This is especially evident at the strander where it is difficult to produce evenly sized strands that are needed for efficient processing and to meet final panel strength properties. The drier wood causes the strander to generate very high levels (from 5-50% of the total volume) of very small wood particles, termed "fines", which significantly reduces the mill's wood recovery. To date, there have been no online, fines measurement technologies available for industry use. To help avoid excessive fines generation, technology for online measurement of fines level and strand size classification needed to be developed to allow mill operators to detect and rectify costly problems when they occur, and provide mill operators with the important feedback needed for controlling the process variables that reduce fines generation. These include controlling: wood conditioning for optimized moisture content, wood flaking temperature, sharpness of cutting and scoring knives and log alignment in the strander.