Red Seal Tilesetter Exam 2025 – 400 Free Practice Questions to Pass the Exam

The function of a tile spacer is to maintain consistent gaps between tiles for grout. This is crucial in tiling projects because uniform spacing ensures that grout can be applied evenly and fills the joints properly, which not only enhances the visual appeal of the tiled surface but also contributes to the structural integrity of the installation. Proper spacing allows for expansion and contraction of the materials, reducing the risk of cracking or other issues related to movement. Consistent gaps also facilitate easier cleaning and maintenance of the grout lines.

While other options mention important aspects of tile installation—such as cutting tiles or ensuring a level surface—none address the primary role of spacers in maintaining those critical gaps for grout application. Therefore, the correct understanding of the spacer's function directly relates to its essential role in achieving a professional finish and durability in tiled surfaces.