Depending on the kind and moisture content of the wood, wood borers are insects that eat away at wood, causing damage to both furniture and structural wood. Wood borers is a common term used to describe wood-boring beetles. Powderpost beetles of the bostrichid, buprestidae, anobiid, and lyctid families are a few types of wood-boring beetles. Insects that can damage wood-based furniture and structural wood are powder post beetle and wood borer larvae.