When two floor-to-ceiling mirrors are butted together, how should the edges be treated?

When two floor-to-ceiling mirrors are butted together, the edges should be ground. Ground edges help to remove sharpness and create a smoother finish, which is not only safer but also ensures a better aesthetic when two mirrors are joined. This process involves mechanically grinding the edges to a specific finish that prevents chipping and allows for a more seamless visual transition between the two mirrors.

Polished edges, while aesthetically pleasing, may not provide the same level of safety and durability when mirrors are put together. Raw edges can be very sharp, presenting a hazard during handling and installation. Painted edges may not offer the desired clarity and reflectivity that is crucial for mirrors. Therefore, ground edges are the most appropriate treatment for ensuring both safety and a professional look at the seams where two large mirrors meet.