Our normal specification of plywood as the following: Core: poplar, hardwood, birch Glue: MR, E1, E2, WBP Grade: BB/BB, BB/CC, C+/CC Face/back: okoume, bintangor, birch, pine, poplar, pencil cedar, the other wood available Size: 1220x2440mm, 1250x2500mm Thicknesses: from 2.5mm to 21mm Use: interior or outdoor use