I have 40 years of experience, and specialize in the field of wood science with specific knowledge in the areas of mechanical properties, tree and log weights and volumes and wood processing. I have published on such topics as properties of wood and wood products, weights and volume of trees and logs and wood as an energy resource. I have testified 6 times on topics such as mechanical properties of chairs and seating, properties of floor, wall and door material and value lost due to timber theft.