WBP plywood is a sheet material manufactured by gluing together several thin layers of softwood or hardwood veneers. Because the WBP plywood layers are bonded with the grains running against each other the WBP plywood is highly resistant to expanding or shrinking, it is less likely to split when nailed at the edges, and the sheet strength is consistent in all directions. WBP plywood is an exterior grade so long as it is treated with a preservative. WBP (weather and boil-proof) means that the glue line will not break down when subjected to adverse weather conditions, and can also withstand immersion in boiling water.
This WBP plywood has a hardwood face with a poplar core and is graded as B/BB meaning that is has a one piece face veneer uniform in colour with occasional filler on the reverse. It also conforms to the following standards EN636-2, EN314-2.