Defines measurement units used for common forest products (board foot, cubic foot, cord, linear measurements, weight). Covers log rules used to convert log size into board feet, board foot volume, weight, and cubic foot volume, with tables for conversions between units. Describes standards for deductions due to defects. Explains the parts of a scaling ticket. Provides a table of required standards for quality, log surface, and minimum merchantable volume for grading logs by species, minimum gross length, and minimum gross diameter. Covers units used in log exports, poles and piling specifications, posts, pulp, and fuel wood.