Cabinet grade is a commonly used term, but there is no industry standard connected to the term, notes Popular Woodworking Magazine. Each company selling plywood sets its own definition of cabinet grade.
There are, however, two types of plywood commonly used in cabinet making. Veneer core and MDF core are the two types of plywood commonly used in cabinetry. Veneer core plywood is used in making cabinet bodies, but Architectural Institute Woodwork Quality Standards states that veneer core plywood cannot be used for making cabinet doors in the better construction grades. This leaves the higher-quality and smoother-finished MDF core plywood as the choice for high-quality cabinet doors and cabinet front faces.