This video covers a lot of different aspects of wood, logs and how to saw them, Including: Spalted Wood. Introduction to the different woods and their characteristics, Introduction to different methods of cutting logs into lumber. Making River Tables. The importance of Log Size on Sawmill Efficiency. Introduction to Calculating the Board Feet of Lumber in a log and its Weight. Cutting "Cookies" and "Chargers" from a log. Sealing the end grain of lumber and logs.