Groutline

Groutline refers to the narrow space or joint between adjacent tiles, stones, or other hard surface materials. This space is typically filled with grout, a cement-based or epoxy-based material that serves several important functions. The primary purpose of the groutline is to fill the gaps, preventing moisture and debris from seeping beneath the tiles, which could lead to damage or mold growth. It also provides structural support by locking the tiles in place and distributing stress across the surface.

The width of a groutline can vary significantly depending on the type of tile, the desired aesthetic, and the specific application. Smaller tiles, such as mosaics, often have very thin groutlines, while larger format tiles may have wider ones. The color of the grout is also a crucial design element, as it can either complement or contrast with the tile color, influencing the overall visual impact of the tiled area. Over time, groutlines can become stained or discolored, necessitating cleaning or regrouting to restore their appearance and function. The maintenance of groutlines is an important aspect of caring for tiled surfaces.