What is the primary function of a level in carpentry?

The primary function of a level in carpentry is to determine if a surface is horizontal or vertical. Levels are essential tools that provide a visual indication of whether a surface is perfectly level (horizontal) or plumb (vertical). This ensures that installations such as flooring, countertops, and walls are straight and stable. Using a level helps to prevent issues that could arise from improperly aligned structures, such as water pooling in uneven surfaces or misaligned walls that could affect the overall integrity of a building. This precise alignment is crucial for both aesthetics and functionality in carpentry projects, making the level an indispensable tool for any carpenter.