There is a big difference between commercial plywood and marine plywood, not only in quality and characteristics, but also in costs. This article compares these two types of plywood

Commercial plywood – MR grade

Waterproof plywood – BWR grade

MR grade means Moisture Resistant plywood.

BWR grade means Boiling Water Resistant plywood

The type of plywood you choose will depend on what the material will be subjected to after the installation is complete. For instance, if a plywood will be exposed to considerable moisture, marine plywood would be the best choice. However, for kitchen cabinets, interior plywood would be fine, as there's no reason to spend the extra money that plywoods with waterproof glue would cost