Which type of board is distinguished by the size and shape of the wood particles used in its composition?

The correct answer is the choice that describes a type of board based specifically on the size and shape of the wood particles utilized in its creation. Composition board is a general category that includes various types of engineered wood products made from wood fibers or particles combined with adhesives.

Particle board is a more specific term that refers to a type of composition board made by compressing wood particles, such as shavings or sawmill waste, with a resin or adhesive. The distinction lies in the specific size and format of the wood particles, which can greatly influence the properties of the board, including its density, strength, and surface finish. Therefore, composition board encompasses a broader range of products, while particle board focuses specifically on those boards made from smaller wood particles.

On the other hand, hardwood board refers to solid wood boards from hardwood trees, and melamine board typically consists of particle board or MDF (medium-density fiberboard) that is laminated with a melamine resin surface. While these boards may have some overlapping characteristics, the key classification based on wood particle size and shape is most accurately captured by the term "particle board," making that the specific answer related to the question's focus.