Perforated metal sheets are flat metal panels that have been mechanically pierced using specialised presses and precision tooling. The process involves a punch pressing through the material to create clean, accurate holes, referred to as perforations. This operation is repeated systematically until the desired area of the sheet is perforated. Perforated sheets can be produced to standard specifications or tailored to suit decorative or bespoke requirements. The size, shape, and arrangement of the holes define the type and function of the perforation.