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Diamond Manufacturing Company, Perforated Metal Specialists
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Perforated Metal


North America's Leading
& Largest Perforator


When it comes to perforated metal, plastic, and other materials, Diamond Manufacturing has the experience and the resources to satisfy practically every requirement. Since 1915, Diamond Manufacturing has been providing original equipment manufacturers (OEM’s), job shops, and architectural firms with quality perforated material.

To satisfy the varying needs of different customer types, Diamond has to be very versatile. For this reason, Diamond invests in tooling and machinery that can perforate more than 2000 patterns, produce material in tolerances tighter than industry standard, and offer it as sheet, coil, tube, fabricated, or finished product. With these abilities, Diamond Manufacturing Company is capable of satisfying a wide range of requirements.


600 Royal Road Michigan City, IN 46360 243 West Eighth Street, PO Box 4174 - Wyoming, PA 18644