A perforated sheet is a flat material, commonly made of metal, plastic, or paper, that features a series of holes, slots, or decorative patterns created through mechanical or manual punching and stamping. The size, shape, and spacing of these openings can be customized to meet specific requirements. Versatile and functional, perforated sheets are widely used for filtration, screening, ventilation, decoration, and structural applications across industrial, commercial, and architectural sectors.