Method of sawing and stacking board

Method of sawing and stacking board, with the board including first sheets and second sheets each having a longitudinal dimension and a transverse dimension, comprising the steps of moving one first sheet over a first saw table for cutting the sheets in the longitudinal direction and over a second saw table for cutting the sheets in a transverse direction and cutting the one first sheet at least for trimming the longitudinal and transverse edges thereof, placing the cut first sheet on the support surface of a stacking table for forming a support for the bottom of a stack, moving a number of second sheets in series over the first saw table and over the second saw table and trimming the longitudinal and transverse edges of said second sheets and cutting each of the second sheets at least in one of the longitudinal and transverse directions for forming a plurality of sub-divided second sheets from each one of the second sheets moved over the first and second saw tables, each of the sub-divided second sheets having a combined area size equal to or less than the size of the cut first sheet placed on the support surface, and stacking these smaller sub-divided second sheets, while maintaining their positions in relation to each other, on the cut first sheet lying on the stacking table, so that the cut first sheet thus forms a supporting surface for the sub-divided second sheets cut from said second sheets of board.