\Scale"board`\ (?; commonly ?), n. [3d scale +
board.]
1. (Print.) A thin slip of wood used to justify a page.
   [Obs.] --Crabb.
2. A thin veneer of leaf of wood used for covering the
   surface of articles of furniture, and the like.
{Scaleboard plane}, a plane for cutting from a board a wide
   shaving forming a scaleboard.