Green lumber grade yields from black cherry and red maple factory grade logs sawed at band and circular mills

Multivariate regression models were developed to predict green board-foot yields (1 board ft. = 2.360 dm3) for the standard factory lumber grades processed from black cherry (Prunusserotina Ehrh.) and red maple (Acerrubrum L.) factory grade logs sawed at band and circular sawmills. The models use log measurements of grade, scaling diameter, length, and proportion of scaling defect. They can be used in computer programs related to sawmill simulations, economic modeling, or log-yard inventory systems.