WBP plywood is a high-quality type of plywood made by gluing together several thin layers of softwood or hardwood veneers using waterproof glue.
The term WBP stands for Weather and Boil Proof. This means the plywood can withstand boiling water, repeated wetting and drying, and harsh weather conditions without coming apart or delaminating.
WBP plywood is also highly resistant to expansion and shrinking, which makes it less likely to split, even when nailed near the edges. It also has consistent strength in all directions, making it a reliable and durable choice for many construction uses.