Evaluation of the visual stress grading standard on French Spruce (Picea excelsa) and Douglas-fir (Pseudotsuga menziesii) sawn timber

We wish to thank J.C. Sève and S. Vives from Monnet-Sève sawmills who provided us with the two batches of boards. Acknowledgments also go to people from LaBoMap, especially J.C. Butaud who helped us during the tests. Finally, we thank L. Brancheriau from CIRAD, who assisted us with the data exploitation.