👉 Tarring is a process in carpentry and construction where nails or screws are applied to an object, typically a wall or floor, to prevent it from being painted or stained. The term "tarring" comes from the Latin word "tartar," which means "to stain." In carpentry, tarring can be used for many purposes such as protecting surfaces from scratches and stains, sealing gaps between panels, and preventing wood from splitting during assembly.