Freres Mass Ply can be used as pre-fabricated mass timber floor, roof or wall panels, and for beams and columns to allow rapid construction on multi-story structures. Mass Ply has been used in single family homes, industrial buildings and bridges. Mass Ply is available in thicknesses ranging from 2″ to 12″ in 1″ increments. Mass Ply Lam (MPL) products are available in thicknesses up to 24 inches.