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Input Specified Data to Calculate the Open Area

In the selection of perforated metal sheets, open area is a very important concept to understand. If the punching is too concentrated, the pressure resistance of the metal sheet will decrease. And if the punching is too discrete, the hole pitch will be too wide while affect the decorative effect.

Here are some open area calculators of the standard perforation patterns. Just fill in the corresponding parameters to calculate the open area you need. For special patterns, please contact us for dedicated service.

Calculation icon
  • Round Hole (Straight Pattern)

    The diagram of the perforated metal sheet with straight round hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Round Hole (45 ° Staggered)

    The diagram of the perforated metal sheet with 45 ° staggered round hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Round Hole (60 ° Staggered)

    The diagram of the perforated metal sheet with 60 ° staggered round hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Square Hole (Straight Pattern)

    The diagram of the perforated metal sheet with straight square hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Square Hole (Staggered Pattern)

    The diagram of the perforated metal sheet with staggered square hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Square Hole (45 ° Staggered)

    The diagram of the perforated metal sheet with 45 ° staggered square hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Slotted Hole (Staggered)

    The diagram of the perforated metal sheet with staggered slotted hole.

    Enter short edge in mm:

    a

    Enter edge length in mm:

    b

    Enter vertical center distance in mm:

    c

    Enter horizontal center distance in mm:

    c1

    Open area = %

  • Slotted Hole (45 ° Staggered)

    The diagram of the perforated metal sheet with 45 ° staggered slotted hole.

    Enter short edge in mm:

    a

    Enter edge length in mm:

    b

    Enter vertical center distance in mm:

    c

    Enter horizontal center distance in mm:

    c1

    Open area = %

  • Slotted Hole (Straight Pattern)

    The diagram of the perforated metal sheet with straight slotted hole.

    Enter short edge in mm:

    a

    Enter edge length in mm:

    b

    Enter vertical center distance in mm:

    c

    Enter horizontal center distance in mm:

    c1

    Open area = %

  • Hexagonal Hole (60 ° Staggered)

    The diagram of the perforated metal sheet with 60 ° staggered hexagonal hole.

    Enter hole diameter in mm:

    d

    Enter center distance in mm:

    c

    Open area = %

  • Rectangular Hole (Straight Pattern)

    Rectangular holes in straight line arrangement diagram

    Enter hole width a in mm:

    a

    Enter hole length b in mm:

    b

    Enter pitch c in mm:

    c

    Enter pitch c1 in mm:

    c1

    Open area = %

  • Rectangular Hole (Staggered)

    Rectangular holes in staggered arrangement diagram

    Enter hole width a in mm:

    a

    Enter hole length b in mm:

    b

    Enter pitch c in mm:

    c

    Enter pitch c1 in mm:

    c1

    Open area = %

  • Triangle Hole (Staggered)

    Triangle holes in staggered arrangement diagram

    Enter hole width a in mm:

    a

    Enter hole length b in mm:

    b

    Enter pitch c in mm:

    c

    Enter pitch c1 in mm:

    c1

    Open area = %

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