Pre-Galvanised Steel Perforated Sheet

Open Monday to Thursday 8:30 to 5, Friday 8:30 to 30117 963 4579holes@kentons.biz
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Perforated pre-galvanised steel sheet

Steel sheet with a zinc coating applied before it is perforated. Round and square holes, as full sheets from stock or cut to your sizes.

73 patterns0.6–3mm thickCut to sizeUK delivery
Get a priceCall 0117 963 4579

Stocked pre-galvanised steel patterns

Browse these round-hole patterns from our stocked pre-galvanised steel range. Each product page lists the thicknesses and sheet sizes we supply; ask us to confirm stock and delivery when requesting a price.

3mm hole pre-galvanised perforated sheet (R3 T5) 10mm hole pre-galvanised perforated sheet (R10 T15)

Material Pre-galvanised

Hole shape Any

73 of 73 pre-galvanised patterns
On the shelfMade to order, 5 to 7 days
PatternMaterialHolePitchOpen areaThicknesses (mm)Availability
Round, staggered holes
R1.1 T2Pre-galvanised, 1.1mm, 2mm pitch, 27% openPre-galvanised1.1mm2mm27%Thicknesses 1Made to order
R1.5 T2.5Pre-galvanised, 1.5mm, 2.5mm pitch, 33% openPre-galvanised1.5mm2.5mm33%Thicknesses 1Made to order
R2 T3Pre-galvanised, 2mm, 3mm pitch, 40% openPre-galvanised2mm3mm40%Thicknesses 1Made to order
R2 T3.5Pre-galvanised, 2mm, 3.5mm pitch, 30% openPre-galvanised2mm3.5mm30%Thicknesses 11.52 On the shelf
R2.5 T3.5Pre-galvanised, 2.5mm, 3.5mm pitch, 46% openPre-galvanised2.5mm3.5mm46%Thicknesses 11.5Made to order
R3 T4Pre-galvanised, 3mm, 4mm pitch, 51% openPre-galvanised3mm4mm51%Thicknesses 11.52Made to order
R3 T5Pre-galvanised, 3mm, 5mm pitch, 33% openPre-galvanised3mm5mm33%Thicknesses 0.711.523 On the shelf
R3 T6Pre-galvanised, 3mm, 6mm pitch, 23% openPre-galvanised3mm6mm23%Thicknesses 11.52Made to order
R3 T7Pre-galvanised, 3mm, 7mm pitch, 17% openPre-galvanised3mm7mm17%Thicknesses 1.523Made to order
R4 T5Pre-galvanised, 4mm, 5mm pitch, 58% openPre-galvanised4mm5mm58%Thicknesses 1Made to order
R4 T6Pre-galvanised, 4mm, 6mm pitch, 40% openPre-galvanised4mm6mm40%Thicknesses 11.523 On the shelf
R4 T7Pre-galvanised, 4mm, 7mm pitch, 30% openPre-galvanised4mm7mm30%Thicknesses 11.523Made to order
R4 T8Pre-galvanised, 4mm, 8mm pitch, 23% openPre-galvanised4mm8mm23%Thicknesses 11.52Made to order
R5 T6Pre-galvanised, 5mm, 6mm pitch, 63% openPre-galvanised5mm6mm63%Thicknesses 1Made to order
R5 T7Pre-galvanised, 5mm, 7mm pitch, 46% openPre-galvanised5mm7mm46%Thicknesses 11.52 On the shelf
R5 T7.5Pre-galvanised, 5mm, 7.5mm pitch, 40% openPre-galvanised5mm7.5mm40%Thicknesses 0.60.711.5Made to order
R5 T8Pre-galvanised, 5mm, 8mm pitch, 35% openPre-galvanised5mm8mm35%Thicknesses 11.523 On the shelf
R5 T9Pre-galvanised, 5mm, 9mm pitch, 28% openPre-galvanised5mm9mm28%Thicknesses 13Made to order
R5 T10Pre-galvanised, 5mm, 10mm pitch, 23% openPre-galvanised5mm10mm23%Thicknesses 11.52Made to order
R5 T12Pre-galvanised, 5mm, 12mm pitch, 16% openPre-galvanised5mm12mm16%Thicknesses 1.523Made to order
R5 T14Pre-galvanised, 5mm, 14mm pitch, 12% openPre-galvanised5mm14mm12%Thicknesses 11.523Made to order
R6 T8Pre-galvanised, 6mm, 8mm pitch, 51% openPre-galvanised6mm8mm51%Thicknesses 11.5 On the shelf
R6 T9Pre-galvanised, 6mm, 9mm pitch, 40% openPre-galvanised6mm9mm40%Thicknesses 11.523 On the shelf
R7 T10Pre-galvanised, 7mm, 10mm pitch, 44% openPre-galvanised7mm10mm44%Thicknesses 11.52Made to order
R7 T11Pre-galvanised, 7mm, 11mm pitch, 37% openPre-galvanised7mm11mm37%Thicknesses 11.523Made to order
R8 T10Pre-galvanised, 8mm, 10mm pitch, 58% openPre-galvanised8mm10mm58%Thicknesses 0.75Made to order
R8 T11Pre-galvanised, 8mm, 11mm pitch, 48% openPre-galvanised8mm11mm48%Thicknesses 11.52Made to order
R8 T12Pre-galvanised, 8mm, 12mm pitch, 40% openPre-galvanised8mm12mm40%Thicknesses 11.523Made to order
R8 T16Pre-galvanised, 8mm, 16mm pitch, 23% openPre-galvanised8mm16mm23%Thicknesses 3Made to order
R10 T12Pre-galvanised, 10mm, 12mm pitch, 63% openPre-galvanised10mm12mm63%Thicknesses 11.52Made to order
R10 T13Pre-galvanised, 10mm, 13mm pitch, 54% openPre-galvanised10mm13mm54%Thicknesses 11.52Made to order
R10 T14Pre-galvanised, 10mm, 14mm pitch, 46% openPre-galvanised10mm14mm46%Thicknesses 11.52Made to order
R10 T15Pre-galvanised, 10mm, 15mm pitch, 40% openPre-galvanised10mm15mm40%Thicknesses 11.523 On the shelf
R10 T18Pre-galvanised, 10mm, 18mm pitch, 28% openPre-galvanised10mm18mm28%Thicknesses 11.52Made to order
R12 T16Pre-galvanised, 12mm, 16mm pitch, 51% openPre-galvanised12mm16mm51%Thicknesses 11.523Made to order
R15 T21Pre-galvanised, 15mm, 21mm pitch, 46% openPre-galvanised15mm21mm46%Thicknesses 11.523Made to order
R18 T22Pre-galvanised, 18mm, 22mm pitch, 61% openPre-galvanised18mm22mm61%Thicknesses 11.52Made to order
R20 T25Pre-galvanised, 20mm, 25mm pitch, 58% openPre-galvanised20mm25mm58%Thicknesses 11.523Made to order
R20 T27Pre-galvanised, 20mm, 27mm pitch, 50% openPre-galvanised20mm27mm50%Thicknesses 2Made to order
R20 T28Pre-galvanised, 20mm, 28mm pitch, 46% openPre-galvanised20mm28mm46%Thicknesses 11.523 On the shelf
R25 T30Pre-galvanised, 25mm, 30mm pitch, 63% openPre-galvanised25mm30mm63%Thicknesses 11.523Made to order
R30 T35Pre-galvanised, 30mm, 35mm pitch, 67% openPre-galvanised30mm35mm67%Thicknesses 11.523Made to order
R30 T40Pre-galvanised, 30mm, 40mm pitch, 51% openPre-galvanised30mm40mm51%Thicknesses 11.523Made to order
Round, in line holes
R4.5 U15Pre-galvanised, 4.5mm, 15mm pitch, 7% openPre-galvanised4.5mm15mm7%Thicknesses 11.5 On the shelf
R5 U10Pre-galvanised, 5mm, 10mm pitch, 20% openPre-galvanised5mm10mm20%Thicknesses 0.711.523Made to order
R5 U15Pre-galvanised, 5mm, 15mm pitch, 9% openPre-galvanised5mm15mm9%Thicknesses 11.523Made to order
R5 U25Pre-galvanised, 5mm, 25mm pitch, 3% openPre-galvanised5mm25mm3%Thicknesses 11.523Made to order
R8 U17.32Pre-galvanised, 8mm, 17.32mm pitch, 17% openPre-galvanised8mm17.32mm17%Thicknesses 11.523Made to order
R10 U15Pre-galvanised, 10mm, 15mm pitch, 35% openPre-galvanised10mm15mm35%Thicknesses 11.523Made to order
R10 U21Pre-galvanised, 10mm, 21mm pitch, 18% openPre-galvanised10mm21mm18%Thicknesses 2Made to order
R10 U25.98Pre-galvanised, 10mm, 25.98mm pitch, 12% openPre-galvanised10mm25.98mm12%Thicknesses 11.523Made to order
R12 U27.72Pre-galvanised, 12mm, 27.72mm pitch, 15% openPre-galvanised12mm27.72mm15%Thicknesses 11.523Made to order
R15 U36.38Pre-galvanised, 15mm, 36.38mm pitch, 13% openPre-galvanised15mm36.38mm13%Thicknesses 11.523Made to order
R20 U48.5Pre-galvanised, 20mm, 48.5mm pitch, 13% openPre-galvanised20mm48.5mm13%Thicknesses 11.523Made to order
Square holes
C5 U8Pre-galvanised, 5mm, 8mm pitch, 39% openPre-galvanised5mm8mm39%Thicknesses 11.5Made to order
C7 U10Pre-galvanised, 7mm, 10mm pitch, 49% openPre-galvanised7mm10mm49%Thicknesses 0.71Made to order
C8 U10Pre-galvanised, 8mm, 10mm pitch, 64% openPre-galvanised8mm10mm64%Thicknesses 11.5 On the shelf
C8 U12Pre-galvanised, 8mm, 12mm pitch, 44% openPre-galvanised8mm12mm44%Thicknesses 11.52Made to order
C9.2 U34Pre-galvanised, 9.2mm, 34mm pitch, 7% openPre-galvanised9.2mm34mm7%Thicknesses 11.52Made to order
C9.2 U37.98Pre-galvanised, 9.2mm, 37.98mm pitch, 6% openPre-galvanised9.2mm37.98mm6%Thicknesses 1.52Made to order
C9.5 U13.33Pre-galvanised, 9.5mm, 13.33mm pitch, 51% openPre-galvanised9.5mm13.33mm51%Thicknesses 11.5Made to order
C10 U12Pre-galvanised, 10mm, 12mm pitch, 69% openPre-galvanised10mm12mm69%Thicknesses 11.5Made to order
C10 U14Pre-galvanised, 10mm, 14mm pitch, 51% openPre-galvanised10mm14mm51%Thicknesses 2 On the shelf
C10 U15Pre-galvanised, 10mm, 15mm pitch, 44% openPre-galvanised10mm15mm44%Thicknesses 12 On the shelf
C15 U40Pre-galvanised, 15mm, 40mm pitch, 14% openPre-galvanised15mm40mm14%Thicknesses 11.523Made to order
C15 U60Pre-galvanised, 15mm, 60mm pitch, 6% openPre-galvanised15mm60mm6%Thicknesses 11.523Made to order
C20 U40Pre-galvanised, 20mm, 40mm pitch, 25% openPre-galvanised20mm40mm25%Thicknesses 1.52Made to order
C20 U50Pre-galvanised, 20mm, 50mm pitch, 16% openPre-galvanised20mm50mm16%Thicknesses 11.523Made to order
C25 U35Pre-galvanised, 25mm, 35mm pitch, 51% openPre-galvanised25mm35mm51%Thicknesses 11.523Made to order
C25 U70Pre-galvanised, 25mm, 70mm pitch, 13% openPre-galvanised25mm70mm13%Thicknesses 11.523Made to order
C30 U70Pre-galvanised, 30mm, 70mm pitch, 18% openPre-galvanised30mm70mm18%Thicknesses 11.52Made to order
C40 U60Pre-galvanised, 40mm, 60mm pitch, 44% openPre-galvanised40mm60mm44%Thicknesses 11.523Made to order
C50 U100Pre-galvanised, 50mm, 100mm pitch, 25% openPre-galvanised50mm100mm25%Thicknesses 11.523Made to order
Can’t see the pattern you need, or not sure which to pick? Tell us what it’s for.Ask us

Thickness and sheet sizes

Choosing the
right sheet

The hole pattern decides how the sheet looks, while the thickness and sheet size affect its strength, weight and how much cutting is needed. If you’re not sure, tell us what it’s for and we’ll suggest one.

Thickness

Pre-galvanised patterns come in 0.6mm to 3mm. Most of what we keep on the shelf is 1mm to 3mm.

Each pattern page lists every thickness it comes in and which ones are on the shelf.

0.6
0.7
0.75
1
1.5
2
3
Sheet edges drawn to scale. Dark bars are the thicknesses we hold most often.

Sheet sizes

Sheets come in three sizes, though not every pattern comes in all three. Buy them whole, as part sheets, or cut to your exact sizes.

Fewer cuts usually means less waste, so it’s worth telling us your finished sizes up front.

2000 x 1000mm2500 x 1250mm3000 x 1500mm 3000mm1500mm
The three sheet sizes, drawn to the same scale.

Open area

Open area is how much of the sheet is holes. More open area lets more light, air and sound through; less keeps the sheet stiffer and more private.

The same 5mm hole can look very different depending on the pitch.

R5 T1412%R5 T14
R5 T835%R5 T8
R5 T663%R5 T6

Reading a code

R5 T8 means 5mm round holes on an 8mm staggered pitch. C means a square hole, U means holes in straight rows, and LR is a slot.

How pattern codes work

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.

Round hole perforated balustrade
Round hole balustrade panels
Perforated facade cladding
Perforated facade cladding
01

Cut to size →

Part sheets and exact sizes, as well as full sheets.

02

Folded and rolled →

Trays, panels and curved sections made to your drawing.

03

Powder coated →

Finished in any of 150 RAL colours.

04

Edged →

Profile edging to finish cut edges cleanly.

Kenton Stock Guide cover

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.

Download PDF

Pre-galvanised

FAQ

Can’t see your question? Ask us. Our sales team can check stock and sizes.

Call 0117 963 4579Email us
What thicknesses do you hold?

Most pre-galvanised patterns we keep on the shelf are 1mm, 1.5mm, 2mm or 3mm. The full range runs from 0.6mm to 3mm. Each pattern page lists every thickness and which ones are on the shelf.

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.

What does pre-galvanised mean?

The steel is zinc coated before it is perforated. That means the inside of each hole, and any edge we cut, is bare steel rather than coated.

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.

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 pattern, 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 4579

Email

holes@kentons.biz

Address

25/26 Barnack Trading Centre
Novers Hill, Bristol BS3 5QE

Opening hours

Monday to Thursday 8:30 to 5
Friday 8:30 to 3