Patent ID: 6878228

Claim:
A method for manufacturing wood boards comprising the steps of: (a) forming a core inner layer by: (1) preparing a back veneer sheet having longitudinally pierced slots therein oriented in parallel with its longitudinal grain structures; and (2) adhering one or more additional veneer sheets, each having longitudinally pierced slots therein oriented in parallel with its respective longitudinal grain structures, upon said back veneer sheet to form a stack of layered veneer sheets wherein the longitudinal grain structures of each veneer sheets are perpendicularly oriented with respect to each other; and (b) adhering a longitudinally sliced wood veneer face layer on said core inner layer such that the longitudinal grain structures of said face layer veneer are perpendicularly oriented with respect to the longitudinal grain structures of the proximate core inner layer veneer sheet to which it is attached; wherein said pierced slots do not cause appreciable expansion of the resulting wood board.