Any pictures/drawing can be perforated into metal sheets. The range of possibilities is endless and limited only by imagination. Welcome to your potential and contact us TECHNICAL DETAILS Hole Size Larger hole sizes give greater contrast and smaller holes give greater detail. Both detail and contrast are equally important to achieve a balance Hole Shape Round, Square, Slotted, Custom hole shapes are also available Thickness 1 to 8mm but 2 to 4mm being the most popular Sheet sizes Standard sizes up to 3m x 1.5m. Longer sheets can be manufactured by special request. Please note nonstandard sizes increase costs Percentage open area 15% to 50%Â open area. Small holes using various size perforations to achieve shading will result in lower open areas, larger holes will achieve higher open areas. Discuss with us now! let us help you achieve your unique creation.