This lesson describes the common types of leveling
instruments. It also describes their principles, uses, procedures of establishing
elevations, and techniques of laying outbuilding lines. As a builder, you will find the
information especially useful in performing such duties as setting up a level, reading a
leveling rod, interpreting and setting grade stakes, and setting batterboards. Also
included in this lesson are practices and measures that help prevent slides and cave-ins
at excavation sites, and the procedures for computing volume of land mass.