Building should include a course of block that must be laid in running bond, forming a plumb jamb on one end while maintaining 3/8 inch uniform thickness.

Process/Skill Questions:

NCCER Masonry Standards

Level Two, Module Five (28205-14): Advanced Laying Techniques

This module contains detailed information that directs the mason in accomplishing the actual construction of walls, arches, and other useful structures. The text explains construction techniques, safety requirements, and interaction with structure components.