Corner leads height above the center line should be which range?

Corner leads height above the center line should be which range?

• A. 2-3 Courses
• B. 3-4 Courses
• C. 4-5 Courses
• D. 6-7 Courses

Answer: (C)

Corner leads are the initial stacked courses that rise above the center line to establish a true, bonded corner before continuing the walls. Setting the corner leads four to five courses high gives enough height to lock the two walls together with proper mortar joints and alignment, so the remainder of the wall can be built consistently. If the lead height is too short, the corner won’t tie in well and the bond may be weak or misaligned. If it’s too tall, the corner becomes awkward to build and can throw off subsequent course alignment. So four to five courses is the right range.

Corner leads are the initial stacked courses that rise above the center line to establish a true, bonded corner before continuing the walls. Setting the corner leads four to five courses high gives enough height to lock the two walls together with proper mortar joints and alignment, so the remainder of the wall can be built consistently. If the lead height is too short, the corner won’t tie in well and the bond may be weak or misaligned. If it’s too tall, the corner becomes awkward to build and can throw off subsequent course alignment. So four to five courses is the right range.