Open Area Calculations

Let’s Sum Up Your Project

Below are various open area calculators for perforated metal. Click on the text to expand and enter figures into any two fields to obtain your calculation. For additional information, please contact us

60 Diagonal Pattern

Hole Diameter (A)

Center to Center (B)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Clear

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45 Diagonal Pattern

Hole Diameter (A)

Center to Center (B)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Reset

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Square Diagonal Pattern

Center to Center (A)

End to End (B)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Reset

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Hexagon Diagonal Pattern

Diameter (A)

Center to Center (B)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Clear

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Oblong Diagonal Pattern

Width of Slot (A)

Length of Slot (B)

Side Center (D)

Center to Center (C)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Reset

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Oblong Even Pattern

Width of Slot (A)

Length of Slot (B)

Side Center (D)

Center to Center (C)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Reset

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Round Even Pattern

Hole Diameter (A)

Center to Center (B)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Reset

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Square End Slot - Staggered or Straight Centers

Width of Slot (W)

Length of Slot (L)

Side Center (C_W)

End Center (C_L)

Open Area (OA)

Holes per Square Inch (HPSI)

Calculate Reset

Print Share