What is the primary purpose of using spacers in tile installation?

The primary purpose of using spacers in tile installation is to maintain uniform spacing between tiles for grout lines. Spacers ensure that the tiles are evenly spaced, which is essential for aesthetics and functionality. Uniform grout lines create a visually appealing pattern and help to achieve a professional finish. Additionally, consistent spacing allows for proper grout application, ensuring that the grout can properly fill the joints without compromising the integrity of the installation. Using spacers helps to minimize the risk of lippage, where tiles are unevenly aligned, which can affect both the appearance and the safety of the surface, particularly in wet areas.