Glass for railings is ground and polished to ensure that the edge is even, smooth, and finished after cutting. This is particularly important for glass railings, since the edge is often visible—for example, when the glass is held in clamps or has no frame. Edge finishing affects both appearance and quality.
Grinding removes irregularities and minor edge defects left after cutting, and polishing produces a smooth, finely finished surface. The glass edge is more susceptible to damage than the flat surface, so a well-finished edge improves the glass’s durability during transport, handling, and installation. On open railings, such as those with glass clamps, the edge also becomes a visible part of the design.
