What is the primary reason for using spacers during tile installation?

Using spacers during tile installation is essential for ensuring uniform grout lines, which contributes to both the aesthetic quality and functionality of the tiled surface. When tiles are laid, spacers maintain consistent spacing between each tile, allowing for even grout lines that enhance the overall appearance of the installation. This uniformity is critical in achieving a clean and professional look, especially in larger areas where variations in spacing can be more noticeable and detract from the design.

Moreover, uniform grout lines also facilitate proper grouting, ensuring that the grout adheres evenly and fills the gaps effectively. This can help prevent future cracking or breaking of the grout due to uneven pressure or shrinkage. Overall, the use of spacers not only supports aesthetic considerations but also plays a significant role in the longevity and maintenance of the tiled surface.