Perforated metal sheets have been produced in Europe since the late 19th century. In the past, perforated metal sheets were mainly used as sieve and filter elements and as protective plates in industry and machine construction. Creative designers and Western European product experts found new applications for the functional metal sheet – in the form of innovative designs for façade construction. Perforated metal sheets are popular for visual protection of façades in modern residential, hotel and office complexes and are often used for staircases and balconies. Nevertheless, perforated metal sheet has retained its practical character in the design sector and is also used as sound insulation in building construction. Advantages, applications robust material, combines functionality with attractive looks, façade design in transparent look, to visual protection, staircase and balcony railings, suspended metal ceilings, ventilation technology, insect screens in residential buildings, sound insulation.