Alabama Contractors License Practice Exam

Bracing is not required for walls supporting less than how many feet of backfill?

1. 2

2. 3

3. 4

4. 5

The correct answer is: 3

Bracing is essential for stability in wall construction, particularly for walls that support backfill, which can create significant lateral pressure. In many building codes and construction guidelines, a threshold is established regarding the height of backfill that dictates when bracing becomes necessary. In this context, walls supporting less than three feet of backfill typically do not require additional bracing. This is because the lateral forces exerted by backfill under three feet tend to be manageable and can be adequately supported by the wall's intrinsic structural integrity without the need for supplemental bracing. Beyond this height, the risk of instability increases, necessitating proper bracing to maintain safety and structural soundness. Understanding these thresholds is crucial for compliance with building codes and ensuring the durability of the structures.