The Forms We Supply
Four routes cover most of what we quote. Each is a different mill or process route, so the size
window and the lead time differ even where the grade looks similar.
Round hole
The general-purpose pattern: even airflow, predictable open area and the cheapest tooling per square metre.
Ventilation, filtration, guards
Square hole
A more architectural pattern with a higher open area at the same pitch, and a directional look.
Facades, screens, diffusers
Slot hole
Elongated holes that stiffen the sheet along one axis and give a directional visual line.
Acoustic panels, sunshades
Decorative patterns
Custom and decorative layouts where the pattern is the design, punched to the drawing rather than chosen from a catalogue.
Feature walls, retail, signage
Size Range and Standard
Perforated sheet is quoted by hole size, pitch, thickness and sheet size. The open area follows from the first two, and it is the number to compare across quotes.
Swipe the table sideways for the notes →
| Parameter | Range | What decides it |
|---|
| Thickness | 0.3 – 6.0 mm | Thin sheet is punched on a turret; thick sheet needs a different tool and a larger margin. |
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| Hole size | 1 – 50 mm | Hole size against thickness sets the punch life and the burr on the underside. |
|---|
| Pitch | 5 – 50 mm | Pitch with hole size sets the open area, from about 20% to over 60%. |
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| Sheet size | 1000×2000, 1220×2440, 1500×3000 mm, cut to size | Edge margins are part of the pattern; a cut panel needs them allowed for. |
|---|
| Hole patterns | Round, square, slot, decorative | Slot and square patterns are directional and stiffen the sheet along one axis. |
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| Alloys | 1100, 3003, 5052, 6061 | 3003 for general work, 5052 for marine and exterior, 6061 where strength is needed. |
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Products' Properties and Advantages
Four properties decide whether a perforated panel is right for an application, and the third one is usually overlooked.
Weight and stiffness together
Perforating removes material, so the panel gets lighter and less stiff at the same time. Both are predicted from the open area, not measured after the fact.
Ventilation and transparency
Open area drives airflow and visibility; a screen that looks right can still strangle a fan if the pitch is too fine.
Corrosion at the hole edge
Every hole is an edge, and edges are where corrosion starts. Anodizing or coating after perforating covers them; coating before perforating does not.
Formability after perforating
A perforated sheet bends differently from a solid one, and the bend line relative to the hole rows decides whether the pattern distorts.
How We Help Customers
Perforated sheet enquiries are answered by three numbers plus the application. We confirm them before quoting.
01
Give hole size, pitch and thickness
These three set the open area and the strength left in the sheet. Everything else follows.
02
Say what the panel has to do
Airflow, screening, filtration or decoration. The same visual pattern performs differently across those jobs.
03
Decide the panel size and the edge margin
The margin is part of the pattern, so the cut size and the hole layout are agreed together.
04
Fix the finish after perforating
Anodizing or powder coating applied to the perforated sheet covers the hole edges, which is where corrosion starts.
Real Applications
Perforated sheet works where a surface has to let something through and still be a surface.
Architectural screens and facades
Sunshades and privacy screens where the pattern is the design and the open area controls the shade.
Acoustic and ventilation panels
Diffusers, grilles and machine covers where airflow and noise reduction are set by the open area.
Filtration and separation
Coarse screens and guards where hole size defines what passes and what does not.
Machine guarding and safety
Guards that let an operator see the process while keeping hands out, in a documented open area.
