Timber Engineer (IMAGE) University of Massachusetts Amherst Caption Peggi Clouston is a professor of wood mechanics and timber engineering in the UMass Amherst School of Earth and Sustainability. Credit UMass Amherst Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.