Holes Per Square Inch Calculator
Calculate hole density for perforated materials, screens, filters, and more with precision
Hole Pattern Specifications
Material Dimensions
Your Hole Pattern Results
Enter your specifications to see recommended applications for this hole pattern.
Pattern Details
Your detailed hole pattern analysis will appear here.
🔩 Common Hole Patterns Reference
| Pattern Type | Hole Diameter (in) | Center Distance (in) | Holes/SqIn | Open Area % |
|---|---|---|---|---|
| Standard Perf Metal | 0.125 | 0.250 | 18.5 | 23.3% |
| Acoustic Panel | 0.063 | 0.125 | 74.0 | 23.3% |
| Wire Mesh #10 | 0.072 | 0.101 | 98.0 | 50.0% |
| Test Sieve #40 | 0.0165 | 0.0232 | 1,600 | 50.0% |
| Industrial Filter | 0.040 | 0.060 | 277.0 | 44.4% |
| Decorative Grille | 0.187 | 0.375 | 8.2 | 23.3% |
| Micro Perforated | 0.020 | 0.040 | 625.0 | 25.0% |
Note: Values shown are typical examples - actual specifications may vary.
🔍 Hole Pattern Application Tips
Pattern Selection
Staggered patterns provide more uniform strength and better material flow than straight patterns.
Strength Considerations
Maintain at least 1 hole diameter between edges and 2 diameters between holes for structural integrity.
Flow Characteristics
Higher open area percentages improve flow but reduce material strength - find the right balance.
Acoustic Performance
Smaller holes (0.5-2mm) with 20-30% open area provide optimal sound absorption.
Manufacturing Limits
Minimum practical hole size is about 0.3mm for laser cutting and 0.8mm for punching.
Calculations
Open area % = (Hole Area / Unit Pattern Area) × 100. Staggered patterns have √3/2 spacing factor.
Note: This calculator provides theoretical values based on perfect hole patterns. Actual manufacturing tolerances, material properties, and pattern imperfections may affect real-world performance.