Array Metal (M) Sdn. Bhd.
Open Area Calculator
Select a perforation pattern to calculate open area percentage and hole density for your perforated metal sheet.
Round holes
Square holes
Hexagon holes
R-T
Round holes, 60° triangular pitch
Open Area = (R² / T²) × 90.69%Holes/m² = 1,154,700 / T²Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
R-M
Round holes, 45° diagonal pitch
Open Area = (R² / M²) × 78.54%Holes/m² = 1,000,000 / M²Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
R-U
Round holes, 90° rectangular pitch
Open Area = (R² / (U₁ × U₂)) × 78.54%Holes/m² = 1,000,000 / (U₁ × U₂)Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
LR-U
Oblong holes, rectangular pitch
Open Area = (R × L − 0.215 × R²) × 100 / (U₁ × U₂)Holes/m² = 1,000,000 / (U₁ × U₂)Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
LR-Z×Z
Oblong holes, staggered pitch
Open Area = (R × L − 0.215 × R²) × 100 / (Z₁ × Z₂)Holes/m² = 1,000,000 / (Z₁ × Z₂)Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
C-T
Square holes, 60° triangular pitch
Open Area = (C² / T²) × 115.47%Holes/m² = 1,154,700 / T²Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
C-U
Square holes, 90° rectangular pitch
Open Area = (C² / (U₁ × U₂)) × 100%Holes/m² = 1,000,000 / (U₁ × U₂)Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
CD-M
Square holes (diagonal), 45° pitch
Open Area = (CD² / M²) × 100%Holes/m² = 1,000,000 / M²Enter a valid hole and pitch to specify a sheet and add it to an enquiry.
H-T
Hexagon holes, 60° triangular pitch
Open Area = (H² / T²) × 100%Holes/m² = 1,154,700 / T²Enter a valid hole and pitch to specify a sheet and add it to an enquiry.