Calculation of Open Area  

 ROUND PERFORATIONS

STAGGERED

 
         
  Enter Value (in mm) : D
  Enter Value (in mm) : C
  Select Angle (in degree) (for holes) : A


STRAIGHT LINE PATTERN

  45 DEGREE PATTERN

 
   
   
  ROUND END SLOT SIDE STAGGER (SS)

 

 
  Enter Value (in mm) : W
  Enter Value (in mm) : L
  Enter Value (in mm) : CL
  Enter Value (in mm) : CW


  ROUND END SLOT END STAGGER 1

 

 
  Enter Value (in mm) : W
  Enter Value (in mm) : L
  Enter Value (in mm) : CL
  Enter Value (in mm) : CW


   
   ROUND END SLOT END STAGGER 2

 
  Enter Value (in mm) : W
  Enter Value (in mm) : L
  Enter Value (in mm) : CL
  Enter Value (in mm) : CW


   
   SQUARE PERFORATIONS STRAIGHT LINE

 
  Enter Value (in mm) : S
  Enter Value (in mm) : C


   

  SQUARE PERFORATIONS STAGGERED

 
  Enter Value (in mm) : S
  Enter Value (in mm) : C


   
Goto
Weight of a perforated sheet