Block Board

Block board" typically refers to a type of engineered wood product used in construction and furniture making. It is also known as lumber core or lumber-filled board. Block board is made by sandwiching a core of wooden blocks or strips between two layers of veneer or plywood. The outer veneer layers provide a smooth and attractive finish, while the wooden blocks in the core add strength and stability.

Block boards are commonly used for making doors, tabletops, shelves, and other furniture components that require a combination of strength and a smooth surface finish. They are especially popular in situations where you need a large, flat, and stable surface.