Face and back: okoume, bintangor, pine, birch, poplar Core: poplar, birch, pine, elm, hardwood Size: 4 x 8', 3 x 6', Products / LVL Model ... and back: okoume, bintangor, pine, birch, poplar2) Core: poplar, birch, pine, elm, hardwood3) Size: 4 x 8', 3 x 6', 1,250 x ... 2,500mm4) Grade: BB / CC, and C/C5) Thickness: 3 ...