Building a straight lead should include
- laying brick on a stretcher bond
- forming a plumb jamb on one end
- racking back a half brick on the opposite end
- maintaining uniform joint width.
IRC: Chapters 4 and 7 (https://codes.iccsafe.org/content/IRC2018P4) cover coursing of brick and block along with head- and bed-joint-required sizing.
Process/Skill Questions:
- What is meant by checking the range?
- Where is the tail located on the lead?
NCCER Standards:
Masonry: Level One (L1NCCT28)
- 28105-04 Masonry Units and Installation Techniques