Perforated metal
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Perforated metal
Round and square holes from 0.5mm to 50mm, in mild steel, aluminium, galvanised, stainless and copper. Full sheets from stock, or cut, folded and finished to your drawing.
Material All materials
All materialsHole shape Any
377 of 377 perforated patternsOn the shelfMade to order, 5 to 7 days
| Pattern | Material | Hole | Pitch | Open area | Thicknesses (mm) | Availability | |||
|---|---|---|---|---|---|---|---|---|---|
| Round, staggered holes | |||||||||
 | R0.5 T1.09Stainless 304, 0.5mm, 1.09mm pitch, 19% open | Stainless 304 | 0.5mm | 1.09mm | 19% | Thicknesses 0.40.5 | On the shelf | ||
 | R1 T2.2Stainless 304, 1mm, 2.2mm pitch, 19% open | Stainless 304 | 1mm | 2.2mm | 19% | Thicknesses 1 | On the shelf | ||
 | R1.1 T2Mild steel, 1.1mm, 2mm pitch, 27% open | Mild steel | 1.1mm | 2mm | 27% | Thicknesses 0.751 | On the shelf | ||
| R1.1 T2Stainless 304, 1.1mm, 2mm pitch, 27% open | Stainless 304 | 1.1mm | 2mm | 27% | Thicknesses 0.8 | On the shelf | ||
| R1.1 T2Stainless 316, 1.1mm, 2mm pitch, 27% open | Stainless 316 | 1.1mm | 2mm | 27% | Thicknesses 0.8 | On the shelf | ||
 | R1.5 T2.5Mild steel, 1.5mm, 2.5mm pitch, 33% open | Mild steel | 1.5mm | 2.5mm | 33% | Thicknesses 11.5 | On the shelf | ||
| R1.5 T2.5Stainless 304, 1.5mm, 2.5mm pitch, 33% open | Stainless 304 | 1.5mm | 2.5mm | 33% | Thicknesses 1 | On the shelf | ||
| R1.5 T2.5Stainless 316, 1.5mm, 2.5mm pitch, 33% open | Stainless 316 | 1.5mm | 2.5mm | 33% | Thicknesses 1 | On the shelf | ||
 | R2 T3Mild steel, 2mm, 3mm pitch, 40% open | Mild steel | 2mm | 3mm | 40% | Thicknesses 1 | On the shelf | ||
| R2 T3Stainless 304, 2mm, 3mm pitch, 40% open | Stainless 304 | 2mm | 3mm | 40% | Thicknesses 1 | On the shelf | ||
 | R2 T3.5Aluminium, 2mm, 3.5mm pitch, 30% open | Aluminium | 2mm | 3.5mm | 30% | Thicknesses 11.52 | On the shelf | ||
| R2 T3.5Mild steel, 2mm, 3.5mm pitch, 30% open | Mild steel | 2mm | 3.5mm | 30% | Thicknesses 11.52 | On the shelf | ||
| R2 T3.5Pre-galvanised, 2mm, 3.5mm pitch, 30% open | Pre-galvanised | 2mm | 3.5mm | 30% | Thicknesses 11.52 | On the shelf | ||
| R2 T3.5Stainless 304, 2mm, 3.5mm pitch, 30% open | Stainless 304 | 2mm | 3.5mm | 30% | Thicknesses 11.5 | On the shelf | ||
| R2 T3.5Stainless 316, 2mm, 3.5mm pitch, 30% open | Stainless 316 | 2mm | 3.5mm | 30% | Thicknesses 11.5 | On the shelf | ||
 | R2 T4Stainless 304, 2mm, 4mm pitch, 23% open | Stainless 304 | 2mm | 4mm | 23% | Thicknesses 2 | On the shelf | ||
 | R2.5 T3.5Mild steel, 2.5mm, 3.5mm pitch, 46% open | Mild steel | 2.5mm | 3.5mm | 46% | Thicknesses 11.52 | On the shelf | ||
 | R3 T4Mild steel, 3mm, 4mm pitch, 51% open | Mild steel | 3mm | 4mm | 51% | Thicknesses 11.5 | On the shelf | ||
| R3 T4Stainless 304, 3mm, 4mm pitch, 51% open | Stainless 304 | 3mm | 4mm | 51% | Thicknesses 1 | On the shelf | ||
 | R3 T5Aluminium, 3mm, 5mm pitch, 33% open | Aluminium | 3mm | 5mm | 33% | Thicknesses 0.711.523 | On the shelf | ||
 | R3 T5Mild steel, 3mm, 5mm pitch, 33% open | Mild steel | 3mm | 5mm | 33% | Thicknesses 11.523 | On the shelf | ||
| R3 T5Pre-galvanised, 3mm, 5mm pitch, 33% open | Pre-galvanised | 3mm | 5mm | 33% | Thicknesses 0.711.523 | On the shelf | ||
| R3 T5Stainless 304, 3mm, 5mm pitch, 33% open | Stainless 304 | 3mm | 5mm | 33% | Thicknesses 0.711.523 | On the shelf | ||
| R3 T5Stainless 316, 3mm, 5mm pitch, 33% open | Stainless 316 | 3mm | 5mm | 33% | Thicknesses 0.711.52 | On the shelf | ||
 | R3 T6Stainless 304, 3mm, 6mm pitch, 23% open | Stainless 304 | 3mm | 6mm | 23% | Thicknesses 11.52 | On the shelf | ||
| R3 T6Stainless 316, 3mm, 6mm pitch, 23% open | Stainless 316 | 3mm | 6mm | 23% | Thicknesses 3 | On the shelf | ||
 | R4 T5Mild steel, 4mm, 5mm pitch, 58% open | Mild steel | 4mm | 5mm | 58% | Thicknesses 11.5 | On the shelf | ||
| R4 T6Mild steel, 4mm, 6mm pitch, 40% open | Mild steel | 4mm | 6mm | 40% | Thicknesses 11.523 | On the shelf | ||
| R4 T6Pre-galvanised, 4mm, 6mm pitch, 40% open | Pre-galvanised | 4mm | 6mm | 40% | Thicknesses 11.523 | On the shelf | ||
| R4 T6Stainless 304, 4mm, 6mm pitch, 40% open | Stainless 304 | 4mm | 6mm | 40% | Thicknesses 11.52 | On the shelf | ||
| R4 T6Stainless 316, 4mm, 6mm pitch, 40% open | Stainless 316 | 4mm | 6mm | 40% | Thicknesses 11.52 | On the shelf | ||
 | R5 T6Mild steel, 5mm, 6mm pitch, 63% open | Mild steel | 5mm | 6mm | 63% | Thicknesses 1 | On the shelf | ||
 | R5 T7Mild steel, 5mm, 7mm pitch, 46% open | Mild steel | 5mm | 7mm | 46% | Thicknesses 11.21.52 | On the shelf | ||
| R5 T7Pre-galvanised, 5mm, 7mm pitch, 46% open | Pre-galvanised | 5mm | 7mm | 46% | Thicknesses 11.52 | On the shelf | ||
| R5 T7Stainless 304, 5mm, 7mm pitch, 46% open | Stainless 304 | 5mm | 7mm | 46% | Thicknesses 11.52 | On the shelf | ||
 | R5 T8Aluminium, 5mm, 8mm pitch, 35% open | Aluminium | 5mm | 8mm | 35% | Thicknesses 11.523 | On the shelf | ||
| R5 T8Mild steel, 5mm, 8mm pitch, 35% open | Mild steel | 5mm | 8mm | 35% | Thicknesses 11.5235 | On the shelf | ||
| R5 T8Pre-galvanised, 5mm, 8mm pitch, 35% open | Pre-galvanised | 5mm | 8mm | 35% | Thicknesses 11.523 | On the shelf | ||
| R5 T8Stainless 304, 5mm, 8mm pitch, 35% open | Stainless 304 | 5mm | 8mm | 35% | Thicknesses 11.523 | On the shelf | ||
| R5 T8Stainless 316, 5mm, 8mm pitch, 35% open | Stainless 316 | 5mm | 8mm | 35% | Thicknesses 11.523 | On the shelf | ||
 | R6 T8Pre-galvanised, 6mm, 8mm pitch, 51% open | Pre-galvanised | 6mm | 8mm | 51% | Thicknesses 11.5 | On the shelf | ||
| R6 T8Stainless 304, 6mm, 8mm pitch, 51% open | Stainless 304 | 6mm | 8mm | 51% | Thicknesses 11.52 | On the shelf | ||
 | R6 T9Aluminium, 6mm, 9mm pitch, 40% open | Aluminium | 6mm | 9mm | 40% | Thicknesses 11.5234 | On the shelf | ||
| R6 T9Mild steel, 6mm, 9mm pitch, 40% open | Mild steel | 6mm | 9mm | 40% | Thicknesses 11.523 | On the shelf | ||
| R6 T9Pre-galvanised, 6mm, 9mm pitch, 40% open | Pre-galvanised | 6mm | 9mm | 40% | Thicknesses 11.523 | On the shelf | ||
| R6 T9Stainless 304, 6mm, 9mm pitch, 40% open | Stainless 304 | 6mm | 9mm | 40% | Thicknesses 11.523 | On the shelf | ||
| R6 T9Stainless 316, 6mm, 9mm pitch, 40% open | Stainless 316 | 6mm | 9mm | 40% | Thicknesses 11.52 | On the shelf | ||
 | R6 T12Mild steel, 6mm, 12mm pitch, 23% open | Mild steel | 6mm | 12mm | 23% | Thicknesses 6 | On the shelf | ||
 | R8 T11Mild steel, 8mm, 11mm pitch, 48% open | Mild steel | 8mm | 11mm | 48% | Thicknesses 11.52 | On the shelf | ||
 | R8 T12Aluminium, 8mm, 12mm pitch, 40% open | Aluminium | 8mm | 12mm | 40% | Thicknesses 11.523 | On the shelf | ||
| R8 T12Mild steel, 8mm, 12mm pitch, 40% open | Mild steel | 8mm | 12mm | 40% | Thicknesses 11.523456 | On the shelf | ||
| R8 T12Stainless 304, 8mm, 12mm pitch, 40% open | Stainless 304 | 8mm | 12mm | 40% | Thicknesses 11.523 | On the shelf | ||
 | R10 T15Aluminium, 10mm, 15mm pitch, 40% open | Aluminium | 10mm | 15mm | 40% | Thicknesses 11.5234 | On the shelf | ||
| R10 T15Mild steel, 10mm, 15mm pitch, 40% open | Mild steel | 10mm | 15mm | 40% | Thicknesses 11.52345 | On the shelf | ||
| R10 T15Pre-galvanised, 10mm, 15mm pitch, 40% open | Pre-galvanised | 10mm | 15mm | 40% | Thicknesses 11.523 | On the shelf | ||
| Round, in line holes | |||||||||
 | R4.5 U15Aluminium, 4.5mm, 15mm pitch, 7% open | Aluminium | 4.5mm | 15mm | 7% | Thicknesses 1.52 | Made to order | ||
| R4.5 U15Mild steel, 4.5mm, 15mm pitch, 7% open | Mild steel | 4.5mm | 15mm | 7% | Thicknesses 1.5 | On the shelf | ||
| R4.5 U15Pre-galvanised, 4.5mm, 15mm pitch, 7% open | Pre-galvanised | 4.5mm | 15mm | 7% | Thicknesses 11.5 | On the shelf | ||
| R4.5 U15Stainless 304, 4.5mm, 15mm pitch, 7% open | Stainless 304 | 4.5mm | 15mm | 7% | Thicknesses 1.5 | On the shelf | ||
 | R5 U10Aluminium, 5mm, 10mm pitch, 20% open | Aluminium | 5mm | 10mm | 20% | Thicknesses 11.52 | Made to order | ||
| R5 U10Mild steel, 5mm, 10mm pitch, 20% open | Mild steel | 5mm | 10mm | 20% | Thicknesses 11.523 | Made to order | ||
| R5 U10Pre-galvanised, 5mm, 10mm pitch, 20% open | Pre-galvanised | 5mm | 10mm | 20% | Thicknesses 0.711.523 | Made to order | ||
| R5 U10Stainless 304, 5mm, 10mm pitch, 20% open | Stainless 304 | 5mm | 10mm | 20% | Thicknesses 11.52 | Made to order | ||
| R5 U10Stainless 316, 5mm, 10mm pitch, 20% open | Stainless 316 | 5mm | 10mm | 20% | Thicknesses 11.5 | Made to order | ||
 | R5 U15Aluminium, 5mm, 15mm pitch, 9% open | Aluminium | 5mm | 15mm | 9% | Thicknesses 11.523 | Made to order | ||
| R5 U15Mild steel, 5mm, 15mm pitch, 9% open | Mild steel | 5mm | 15mm | 9% | Thicknesses 11.52 | Made to order | ||
| R5 U15Pre-galvanised, 5mm, 15mm pitch, 9% open | Pre-galvanised | 5mm | 15mm | 9% | Thicknesses 11.523 | Made to order | ||
| R5 U15Stainless 304, 5mm, 15mm pitch, 9% open | Stainless 304 | 5mm | 15mm | 9% | Thicknesses 11.523 | Made to order | ||
| R5 U15Stainless 316, 5mm, 15mm pitch, 9% open | Stainless 316 | 5mm | 15mm | 9% | Thicknesses 11.52 | Made to order | ||
| Square holes | |||||||||
 | C3 U5Mild steel, 3mm, 5mm pitch, 36% open | Mild steel | 3mm | 5mm | 36% | Thicknesses 1 | On the shelf | ||
 | C4 U7Aluminium, 4mm, 7mm pitch, 32% open | Aluminium | 4mm | 7mm | 32% | Thicknesses 1.5 | Made to order | ||
| C4 U7Mild steel, 4mm, 7mm pitch, 33% open | Mild steel | 4mm | 7mm | 33% | Thicknesses 11.5 | Made to order | ||
 | C5 U7Mild steel, 5mm, 7mm pitch, 51% open | Mild steel | 5mm | 7mm | 51% | Thicknesses 11.52 | Made to order | ||
| C5 U7Stainless 304, 5mm, 7mm pitch, 51% open | Stainless 304 | 5mm | 7mm | 51% | Thicknesses 1.5 | On the shelf | ||
 | C5 U7.5Mild steel, 5mm, 7.5mm pitch, 44% open | Mild steel | 5mm | 7.5mm | 44% | Thicknesses 11.52 | Made to order | ||
| C5 U7.5Stainless 304, 5mm, 7.5mm pitch, 44% open | Stainless 304 | 5mm | 7.5mm | 44% | Thicknesses 1 | On the shelf | ||
 | C5 U8Aluminium, 5mm, 8mm pitch, 39% open | Aluminium | 5mm | 8mm | 39% | Thicknesses 11.52 | Made to order | ||
| C5 U8Mild steel, 5mm, 8mm pitch, 39% open | Mild steel | 5mm | 8mm | 39% | Thicknesses 11.52 | On the shelf | ||
| C5 U8Pre-galvanised, 5mm, 8mm pitch, 39% open | Pre-galvanised | 5mm | 8mm | 39% | Thicknesses 11.5 | Made to order | ||
| C5 U8Stainless 304, 5mm, 8mm pitch, 39% open | Stainless 304 | 5mm | 8mm | 39% | Thicknesses 1.5 | On the shelf | ||
 | C6 U9Aluminium, 6mm, 9mm pitch, 44% open | Aluminium | 6mm | 9mm | 44% | Thicknesses 1.5 | On the shelf | ||
| C6 U9Mild steel, 6mm, 9mm pitch, 44% open | Mild steel | 6mm | 9mm | 44% | Thicknesses 11.52 | On the shelf | ||
 | C8 U10Mild steel, 8mm, 10mm pitch, 64% open | Mild steel | 8mm | 10mm | 64% | Thicknesses 11.52 | On the shelf | ||
| C8 U10Pre-galvanised, 8mm, 10mm pitch, 64% open | Pre-galvanised | 8mm | 10mm | 64% | Thicknesses 11.5 | On the shelf | ||
 | C8 U12Mild steel, 8mm, 12mm pitch, 44% open | Mild steel | 8mm | 12mm | 44% | Thicknesses 11.523 | On the shelf | ||
| C8 U12Stainless 304, 8mm, 12mm pitch, 44% open | Stainless 304 | 8mm | 12mm | 44% | Thicknesses 1.5 | On the shelf | ||
 | C10 U12Mild steel, 10mm, 12mm pitch, 69% open | Mild steel | 10mm | 12mm | 69% | Thicknesses 11.52 | On the shelf | ||
| C10 U12Stainless 304, 10mm, 12mm pitch, 69% open | Stainless 304 | 10mm | 12mm | 69% | Thicknesses 11.5 | On the shelf | ||
| C10 U12Stainless 316, 10mm, 12mm pitch, 69% open | Stainless 316 | 10mm | 12mm | 69% | Thicknesses 11.5 | On the shelf | ||
 | C10 U14Mild steel, 10mm, 14mm pitch, 51% open | Mild steel | 10mm | 14mm | 51% | Thicknesses 11.523 | On the shelf | ||
| C10 U14Pre-galvanised, 10mm, 14mm pitch, 51% open | Pre-galvanised | 10mm | 14mm | 51% | Thicknesses 2 | On the shelf | ||
 | C10 U15Aluminium, 10mm, 15mm pitch, 44% open | Aluminium | 10mm | 15mm | 44% | Thicknesses 1.52 | On the shelf | ||
| C10 U15Mild steel, 10mm, 15mm pitch, 44% open | Mild steel | 10mm | 15mm | 44% | Thicknesses 11.5234 | On the shelf | ||
| C10 U15Pre-galvanised, 10mm, 15mm pitch, 44% open | Pre-galvanised | 10mm | 15mm | 44% | Thicknesses 12 | On the shelf | ||
| C10 U15Stainless 304, 10mm, 15mm pitch, 44% open | Stainless 304 | 10mm | 15mm | 44% | Thicknesses 1.523 | On the shelf | ||
| C10 U15Stainless 316, 10mm, 15mm pitch, 44% open | Stainless 316 | 10mm | 15mm | 44% | Thicknesses 2 | On the shelf | ||
 | C15 U20Mild steel, 15mm, 20mm pitch, 56% open | Mild steel | 15mm | 20mm | 56% | Thicknesses 11.523 | On the shelf | ||
 | C25 U30Aluminium, 25mm, 30mm pitch, 69% open | Aluminium | 25mm | 30mm | 69% | Thicknesses 23 | On the shelf | ||
| Slotted holes | |||||||||
 | LR3x20Mild steel, 3 x 20mm slot, 36% open | Mild steel | 3 x 20mm slot | – | 36% | Thicknesses 1.5 | On the shelf | ||
 | LR5x20Mild steel, 5 x 20mm slot, 44% open | Mild steel | 5 x 20mm slot | – | 44% | Thicknesses 11.52 | On the shelf | ||
Can’t see the pattern you need, or not sure which to pick? Tell us what it’s for.Ask us
Filters
Perforated sheet by material
- Mild steel – the big range. 102 patterns, round, square and slotted, 0.5mm up to 10mm thick. Most of what goes out the door.
- Aluminium – 75 patterns, 0.7mm to 4mm. Round, square and slotted.
- Pre-galvanised – mild steel with the zinc coat already on it from the mill, perforated afterwards. 73 patterns, 0.6mm to 3mm, round and square holes.
- Stainless 304 – 74 patterns, 0.4mm to 4mm, round, square and slotted.
- Stainless 316 – 48 patterns, 0.7mm to 6mm, round and square.
- Copper – 5 patterns, 0.6mm to 1mm. Made to order, usually 5 to 7 days.
- Corten (weathering steel) – we don’t stock it, but can often get it perforated to your spec. Email holes@kentons.biz or ring us to talk it through.
Not sure which you want? Ring the sales office on 0117 963 4579 and tell us what it’s for.
Pattern codes
How to read a pattern code
R5T8
- R
- Round hole. C means a square hole.
- 5
- Hole size in millimetres.
- T
- Staggered pitch, holes at 60°. U means a square, in-line pitch.
- 8
- Pitch: the distance from the centre of one hole to the next, in millimetres.
So R5 T8 is 5mm round holes on an 8mm staggered pitch, which gives about 35% open area.
Services
Cut, formed and finished
Buy full sheets, or have us take them further. Tell us what you need and we’ll price it together.
Download the Stock Guide
Every perforated sheet we keep, laid out by material with hole size, pitch, open area and thickness.
Perforated sheet starts on page 4. Updated October 2026. 44 pages, PDF, 4.8MB.
Perforated sheet
FAQ
Have a question we haven’t answered? Call or email and our sales team can check stock and sizes for you.
What thicknesses do you stock?
Most patterns are held in 1mm to 3mm, with some from 0.5mm up to 10mm depending on the material. Each product page lists the exact thicknesses we hold.
What sheet sizes are available?
Stock sheets are 2000 x 1000mm or 2500 x 1250mm. We can get 3000 x 1500mm in to order, usually in 5 to 7 days. We can cut part sheets or exact sizes from any of them.
How quickly can I have it?
Full sheets from stock go out the next working day across the UK. Cut pieces and made-to-order patterns get a delivery date when we price them, usually 5 to 7 days.
Can you cut it to size?
Yes. Send us the sizes and quantities, or a drawing, and we will price the cutting with the material.
What does open area mean?
It is the share of the sheet that is holes. More open area lets more light, air or sound through. Each product page gives the open area for that pattern.
Do you have a minimum order?
No minimum on stock sheets. Ring or email the sales office and we can check stock and price it.
Get a price
Tell us the material, thickness, sizes and quantity, or attach a drawing. We’ll come back with a price and a delivery date, usually the same working day.
Phone
0117 963 4579Address
25/26 Barnack Trading Centre
Novers Hill, Bristol BS3 5QE
Opening hours
Monday to Thursday 8:30 to 5
Friday 8:30 to 3