Round hole perforated metal
Round hole perforated metal is the most versatile industrial pattern, punched in staggered (60°) or straight (90°) centers. Engineered for consistent flow rates, structural rigidity, and uniform open area across varied sheet dimensions.
Manufactured to print with specific unperforated margins, custom pitch spacing, and secondary shearing or leveling.
Hole diameter range
1/16 in to 1 in
Proportional center-to-center spacing
Typical open area
20% – 60%
Configured for flow and strength requirements
Pattern configurations
60° & 90°
Staggered or straight pitch spacing
Standard sheet gauges
26 ga to 1/2 in plate
Custom gauge & margin sizing on request
Center arrangements
Hole layout dictates physical open area percentage, rigidity across both axes, and directional airflow or liquid passage.
The standard perforation arrangement offering optimal open area distribution and structural integrity across the sheet.
Square grid alignment suited for parallel flow, aligned architectural visibility, and specific screening machinery.
Available alloys & materials
Perforated in standard mill finishes or prepared for downstream anodizing, powder coating, and passivation.
Cold rolled & hot rolled options for heavy structural and industrial use.
High corrosion resistance for chemical, food grade, and marine exposure.
Lightweight, non-magnetic alloys suited for facades and acoustic baffles.
Common industrial & architectural applications
Round hole patterns balance high strength-to-weight ratios with predictable acoustics and open area ratings.
Filtration & separation
Liquid strainers, intake screens, and aggregate sorting sieves.
Acoustic control panels
Sound attenuation enclosures, silencer linings, and ceiling baffles.
Ventilation & airflow grilles
HVAC equipment housings, protective engine covers, and duct vents.
Architectural cladding
Exterior facades, sunscreens, balcony balustrades, and interior infill.
Screening machinery
Vibratory separator plates, grain dryers, and hammer mill screens.
Send your drawings and required open area parameters directly to our technical sales team.
Manufacturing specifications
Standard tooling parameters and stock alloy capacities for Mutual Metal perforated products.
Standard precision round tooling available with custom micro and oversized options on request.
Optimal structural integrity with 60-degree staggered layout, or clean line-of-sight with 90-degree alignment.
Engineered balances for ventilation, acoustic diffusion, filtration, and architectural shading.
From lightweight decorative sheet stock up to heavy structural load-bearing plate.
Corrosion-resistant alloys and standard commercial alloys prepped for forming, welding, or coating.
Non-standard margins, blank areas, and custom staggered hole angles quoted per engineering drawing.