How do you identify marine ply?

Marine plywood can be identified by its distinct features: it is made from high-quality hardwood veneers, bonded with water-resistant adhesive, and has a smooth surface free of voids. The edges are often sealed to prevent water absorption, and the grade markings will typically indicate its marine suitability. Additionally, marine plywood is usually thicker and heavier than standard plywood, making it more durable in wet conditions. Always check for certification labels that confirm it meets marine standards.