Calculation Tools
Weight and Open Area Calculator
Enter your hole diameter, pitch, material and size information; instantly see the estimated open area ratio and weight. Results are for reference only; for exact sizing and pricing we recommend contacting us.
Perforated Sheet — Size Information
Results
Open Area Ratio
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Unperforated Sheet (kg/m²)
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Perforated Sheet (kg/m²)
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The open area ratio is calculated with the formula 90.7%×(Ø/P)² for the staggered pattern and 78.5%×(Ø/P)² for the straight pattern. Results are theoretical reference values.
Expanded Metal — Size Selection
Results
Weight per Square Meter
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Total Weight for Entered Size
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Values are based on the approximate kg/m² data in our standard size table.
Would you like to see the sizes we keep in stock?
Browse the hole type and diameter list, grouped by sheet size and thickness, available in our warehouse.
Want to finalize your calculation?
Send us your size and material preference, and our technical team will work with you to determine the exact weight and price quote.