Calculate the Percentage of Open Area
Use these formulas to determine the percentage of open area related to the holes per square inch in your perforated metal product fabricated by Accurate Perforating.
Calculator
Round – 60° Staggered Center
* Holes per square inch
Round – 45° Staggered Center
* Holes per square inch
Round – Straight Center
* Holes per square inch
Round End Slot – Staggered and Straight Center
* Holes per square inch
Square End Slot – Straight Center
* Holes per square inch
Square – Straight Center
* Holes per square inch
Hexagon
* Holes per square inch