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Solutions beyond every limit

O. A. Calculation



Staggered round holes 60°
Level round holes at 90°
Staggered round holes at 45°
Staggered oblong holes
Level oblong holes
Level square holes at 90°
Staggered square holes at 45°
This programme enables you to rapidly calculate the percentage of open area of a perforated sheet compared to its non -perforated surface.
Make your own by clicking on the selected metal sheet. 
n.b. Open area calculation does not take into account any edges or non -perforated areas.



O. A. Calculation