What type of wood is often used for the exterior layer in wood veneer construction?

The use of hardwood as the exterior layer in wood veneer construction is favored primarily because of its durability and aesthetic appeal. Hardwoods, which come from deciduous trees, generally offer a finer grain and richer color than softwoods. This makes them particularly desirable for applications where appearance is important, such as in furniture and cabinetry.

In wood veneer construction, the hardwood layer not only enhances the visual attractiveness of the final product but also contributes to a stronger, more resilient structure. This allows manufacturers to create a quality finish while utilizing lighter or less expensive materials for the core or underlying layers, which can include softwoods or engineered woods.

In contrast, softwoods tend to be softer, lighter, and less durable than hardwoods. While they are used in construction and other applications, they are not typically chosen for visible exterior layers due to their appearance and susceptibility to damage. Plywood and particleboard are engineered products that serve different functions and are not primarily made from solid wood; hence, they would not be used as an exterior veneer layer in this context.