Round
A versatile, economical opening for a broad range of architectural and industrial uses.
- Size
- Ø 1–150 mm
- Layout
- 60° / 45° staggered, straight
- Best for
- Facades, acoustics, filters, guards
Product line 03 · Perforated metal
Perforated metal, punched to the millimetre.
Sheets and panels with the holes you need — for facades, ceilings, filtration, ventilation and machine protection. Specified with you and supplied to your project requirements.
Ø1–150
Round-hole range
mm / tooling confirmed
0.5–10
Sheet thickness
mm / material dependent
6
Hole families
Plus custom patterns
4
Metal options
Stainless · Carbon · Zinc · Al
Hole types
Choose the hole. We’ll handle the pattern.
Hole shape sets the appearance, open area and remaining metal between openings. Tune size and pitch for light, air, sound or filtration.
Square
A crisp architectural grid for screening, display surfaces and ventilation.
- Size
- 2–160 mm side
- Layout
- Straight or staggered rows
- Best for
- Grilles, sunscreens, display walls
Slotted
Long, round-ended slots for sorting, drainage and directional ventilation.
- Size
- 1 × 3 to 60 × 150 mm
- Layout
- Side- or end-staggered
- Best for
- Screening, drying, ventilation
Hexagonal
Honeycomb openings bring a technical appearance with a high potential open area.
- Size
- On request
- Layout
- Honeycomb stagger
- Best for
- HVAC, speaker grilles, interiors
Decorative
Project-specific shapes and image perforation for a distinctive architectural surface.
- Size
- Custom tooling
- Layout
- Pattern or image-based
- Best for
- Facades, feature walls, signage
Fine & micro
Small, dense holes for fine filtration, acoustic backing and controlled airflow.
- Size
- From Ø 1 mm
- Layout
- 60° staggered
- Best for
- Filters, acoustics, electronics
Pattern drawings are illustrative. Availability and tooling depend on material, dimensions and thickness.
Plan your pattern
Open-area calculator.
Explore hole size, pitch and layout. Compare approximate open area, hole count and sheet weight, then send the pattern for tooling confirmation.
1 mm30 mm
5.5 mm50 mm
0.5 mm10 mm
Calculator covers Ø1–30 mm. Larger holes up to Ø150 mm are available on request.
Open area35.4%
Holes per m²18,043
Approx. kg/m²7.60Solid sheet: 11.77 kg/m²
Estimates exclude margins and edge effects. Tooling, tolerances and material suitability require confirmation.
Specification guide
Five values define every sheet.
- Hole size (D)
- Diameter of a round hole or side length of a square opening. Slots are specified as width × length.
- Pitch (P)
- Centre-to-centre distance between neighbouring holes. Smaller pitch increases hole count and open area.
- Layout
- 60° staggered provides more open area than straight rows at the same diameter and pitch. Choose the arrangement to suit appearance and structural requirements.
- Open area
- The percentage of the sheet occupied by holes, influencing air, light, sound and liquid passage.
- Margins
- Unperforated borders and blank zones for bending, welding, fixing and framing. Mark each edge on your drawing.
Rule of thumb
Diameter at least equal to thickness for carbon steel and aluminium; about 1.2× thickness for stainless. Confirm against tooling.
Flatness
High open area can introduce punching stress and bow. Specify levelling, tolerances, margins and framing with your drawing.
Clean edges
Specify deburring and edge quality appropriate to handling, installation and coating. Confirm acceptance criteria before supply.
Materials & finishes
Four metals. Finished for where they’ll live.
Stainless steel
304 · 316 · 316LFor architectural and corrosion-sensitive applications. Pickling and passivation on request.
Carbon steel
Cold & hot rolledAn economical option for industrial panels; galvanizing or powder coating can be specified.
Galvanized steel
Pre-galvanized sheetZinc-coated sheet for guards, agriculture and ventilation; edge protection must suit exposure.
Aluminium
Alloy selected per projectLightweight panels for facades, ceilings and sunscreens, with finishing options to suit the design.
Finishes / on request
Hot-dip galvanizing after punchingPowder coating / RAL coloursAnodizing (aluminium)PVDF coatingPickling & passivation (stainless)
Applications
Architecture outside. Performance inside.
Facades & sunscreens
Shade, privacy and identity in one skin
Ceilings & acoustics
Sound absorption with suitable acoustic backing
Railings & balustrades
Infill specified for the required safety performance
Partitions & interiors
Screens, feature walls and furniture
HVAC & machine guards
Air intakes, fan guards, enclosures and equipment covers.
Filtration & screening
Filter cores and tubes, strainers, sieves and separators.
Noise control
Acoustic barriers, silencers and sound-absorbing panels.
Agriculture & drying
Grain-drying floors, silos, feed screens and vents.
Application images illustrate perforated-metal concepts; performance is confirmed against your project requirements.
From specification to supply
Specified, sourced, finished for your project.
Send a DXF or PDF drawing. We coordinate the pattern, dimensions and requested finishing with our supply partners — Polad Mesh is your supplier, not the manufacturer.
01
Pattern
Select hole shape, pitch, layout and margins.
02
Flatness
Agree levelling requirements and panel tolerances.
03
Dimensions
Specify cutting, notching and blank zones.
04
Forming
Request bends, rolled sections and framing if needed.
05
Finish & check
Confirm coating and dimensional acceptance criteria.
FAQ
Questions engineers ask us.
Can’t find yours? +994 50 207 02 01
As a rule of thumb, use diameter at least equal to thickness for carbon steel and aluminium, and about 1.2 times thickness for stainless steel. Smaller holes require tooling confirmation; a thinner sheet or laser cutting may be appropriate.
Sample & quote
Tell us the hole. We’ll quote the panel.
Share hole type, size, pitch, thickness and quantity — or your drawing. We’ll confirm options and discuss a physical sample if you need one.
+994 50 207 02 01office@poladtrading.com