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• Perforated Metal
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• Uses for Perforated Metal
  • Architectural Metal
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  • Metal Fabrication
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• Perforating Process
• Product Quality,
  Cost & Delivery
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• Material Information
  • Carbon Steel
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• Tolerances and Options
  • Hole & Bar, Dimple Holes
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  • Squareness
  • Blank Areas & Locator Holes
  • End Margin Pattern
  • Coil Diameter, Length/ Splicing, Degreasing
  • Fabricating & Finishing
• Perforated Patterns
  • 60 Degree Staggered Center Round
  • 45 Degree Staggered Center Round
  • Straight Center Round
  • Staggered Center Square
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  • Staggered Round Slot
  • Straight Round Slot
  • Straight Square Slot
  • Geometric Hexagon
  • Decorative
  • Round Orbit 21st Century
  • Double Checkered 21st Century
  • Square Orbit 21st Century
  • Hex Orbit 21st Century
• Patterns by % Open Area
  • 82.6% to 51.7%
  • 51% to 41.3%
  • 40.4% to 32.6%
  • 32.6% to 22.7%
  • 22.6% to 17.2%
  • 17% to 13.4%
  • 13.3% to 10.9%
  • 10.6% to 8%
  • 7.6% to 3.9%
• Technical Studies
  • EMI Shielding Effectiveness
  • Pressure Loss (Fluid)
  • Pressure Loss (Air)
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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.