Why is it important to use levels in masonry work?

In masonry work, using levels is crucial for maintaining horizontal and vertical alignment. This alignment is necessary to ensure that walls and other structures are built correctly, which directly affects their structural integrity and aesthetic appearance. Proper alignment helps distribute loads evenly, preventing issues such as tilting, cracking, and other forms of structural failure.

Without the use of levels, it would be challenging to achieve the correct angles and slopes needed for effective drainage and overall building performance. For example, if a wall is not vertical, it may lean or bow over time, leading to serious repair issues. Therefore, consistent checking with a level ensures that each course of masonry or block is laid correctly, allowing for both functionality and durability of the finished product.