Deep scratches on any panel products will reveal their core and give away the fact that they are not solid lumber.

Question

Quizplus · Accepted Answer

This is true. Panel products such as plywood have a core made up of layers of veneer or particleboard, whereas solid lumber is a single, continuous piece of wood. When a deep scratch is made on a panel product, the core will be visible and the lack of a continuous grain pattern will indicate that it is not solid lumber.

Deep Scratches on Any Panel Products Will Reveal Their Core