Hartzell Hardwoods has been an innovator and leader in the hardwood industry for over 145 years. Long recognized as a worldwi ... de leader in Walnut and top quality thick Oak lumber, Hartzell Hardwood's philosophy continues to be characterized by innovation, quality, and integrity. Our company has long been active in the National Hardwood Lumber Association, the Hardwood Manufacturers Association, the Indiana Hardwood Lumber Association, the American Walnut Manufacturers Association, and the Ohio Forestry Association. read more