Stock orders ship on a next working day delivery !
2.5mm Hole Pre-Galvanised Steel Perforated Sheet (R2.5 T3.5)
Perforated sheetPre-galvanisedKenton code K018G
Stock and sheet sizes
| Pre-galvanisedK018G | 2000 x 1000 | 2500 x 1250 | kg/m² |
|---|---|---|---|
| 1.0mm | 5-7 days | 5-7 days | 4.2 |
| 1.5mm | 5-7 days | 5-7 days | 6.3 |
✓ In stockon the shelf in Bristol5-7 daysmade to orderBlank = not a standard size · sizes in mm
- Cut to sizewhile you wait
- Next working daydelivery on stock sheets
- Folded & fabricatedto your drawing
Description
Technical details
Hole layout

Enlarged, not to scale. Dimensions in mm, pitch measured centre to centre.
Specification
- Hole
- 2.5mm round
- Pitch
- 3.5mm staggered 60°
- Row spacing
- 3.03mm
- Bar between holes
- 1mm
- Open area
- 46%
- Holes per m²
- 94,300
- Thickness
- 1–1.5mm
- Material
- Pre-galvanised
About R2.5 T3.5 pre-galvanised steel perforated sheet
R2.5 T3.5 is a 2.5mm round hole perforated sheet in pre-galvanised steel, with the holes on a 3.5mm staggered pitch giving 46% open area. It’s made to order, usually in 5-7 days, in thicknesses from 1 to 1.5mm. Every sheet can be cut to size while you wait, and stock sheets go out on next working day delivery anywhere in the UK.
All sizes in the table are made to order, usually in 5-7 days.
What does R2.5 T3.5 mean?
R2.5 is a 2.5mm round hole. T3.5 means the holes sit on a 3.5mm staggered (60°) pitch, measured centre to centre.
This pattern also comes in
Similar patterns
| Pattern | Hole | Pitch | Open area | Thickness | Stock |
|---|---|---|---|---|---|
| R2 T3 | 2mm round | 3mm staggered | 40% | 1mm | 5-7 days |
| R2 T3.5 | 2mm round | 3.5mm staggered | 30% | 1–2mm | ✓ In stock |
| R2.5 T3.5This page | 2.5mm round | 3.5mm staggered | 46% | 1–1.5mm | 5-7 days |
| R3 T4 | 3mm round | 4mm staggered | 51% | 1–2mm | 5-7 days |
| R3 T5 | 3mm round | 5mm staggered | 33% | 0.7–3mm | ✓ In stock |
| R3 T6 | 3mm round | 6mm staggered | 23% | 1–2mm | 5-7 days |
| R3 T7 | 3mm round | 7mm staggered | 17% | 1.5–3mm | 5-7 days |
The nearest pre-galvanised steel round hole patterns to R2.5 T3.5. See every pre-galvanised steel pattern →
Dimensions are nominal and weights approximate. Stock changes daily, so please call to confirm.




