Grilles and covers support frames

Underground utilities and other below-street-level installations require airflow and light penetration. The openings used to provide air and light must be protected. Expanded metal mesh grates can be used for this purpose. The grates are reinforced with lateral frames and additional bars, thereby guaranteeing the load capacity required by legislation. The Fils 21 expanded metal mesh, from which they are made, also ensures a non-slip surface.