What material is used to fill holes after wood has a final finish?

The correct choice, putty, is utilized to fill holes in wood after it has received its final finish because it is specifically designed for this purpose. Putty can be blended to match the color of the wood, providing a seamless and visually appealing repair that maintains the aesthetic integrity of the finished surface. It remains pliable for some time, making it easier to work with, and can be sanded after it dries to achieve a flush surface.

In contrast, wood glue is primarily used to bond pieces of wood together rather than to fill holes. Caulk is typically used for sealing gaps in areas where water or air leakage may occur, making it less suited for filling holes in finished wood products. Epoxy, while a strong adhesive that can be used for repairs, often has a different application than putty and may not blend as well with wood finishes, requiring additional steps to achieve a smooth appearance. Thus, putty stands out as the most appropriate choice for filling holes after the final finish has been applied to wood.