First of all he evaluates the characteristics of logs and then determines their grades thanks to the use of established criteria. The grader will also record information regarding individual trees or the volumes into books or even collection terminals which are hand-held. He paints identification marks that are specific colors onto logs in order to identify species or grades using spray paint. He might also call out the grades to the log markers.
A grader will also measure the felled logs or pulpwood loads in order to calculate the weight, volume, marketable value, and dimensions, with the use of conversion devices and measuring devices. He will often cut the logs that are needed. The grader also measures the lengths of logs and marks the boles to buck into the logs, in accordance with specifications.
He will identify those logs that are of special or substandard grade to be returned to shippers, precut, regarded, or even transferred to do other processing. He jabs the logs using scale sticks’ metal ends, and then inspects the logs in order to ascertain defects or characteristics like splits, knots, broken ends, twists, rotten spots, water damage, and cures.
The grader goes to wharfs, skids, or sawmills in order to inspect pulpwood or logs. He communicates with his coworkers through using signals in order to direct the movement of logs. He also weighs the log trucks both before as well as after unloading, then records the load weights and identities of suppliers.