Stock orders ship on a next working day delivery !
2.5mm Hole Mild Steel Perforated Sheet (R2.5 T3.5)
Perforated sheetMild steelKenton code K018M
Stock and sheet sizes
| Mild steelK018M | 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 |
| 2.0mm | ✓ In stock | 8.4 |
✓ 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
- 1–2mm
- Material
- Mild steel
About R2.5 T3.5 mild steel perforated sheet
R2.5 T3.5 is a 2.5mm round hole perforated sheet in mild steel, with the holes on a 3.5mm staggered pitch giving 46% open area. We keep it in stock here in Bristol, in thicknesses from 1 to 2mm. Every sheet can be cut to size while you wait, and stock sheets go out on next working day delivery anywhere in the UK.
In stock: 2mm in 2m x 1m sheets. Everything else in the table is made to order 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 | ✓ In stock |
| 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% | 1–2mm | ✓ In stock |
| R2.5 T4 | 2.5mm round | 4mm staggered | 35% | 1–1.5mm | 5-7 days |
| R3 T4 | 3mm round | 4mm staggered | 51% | 1–1.5mm | ✓ In stock |
| R3 T5 | 3mm round | 5mm staggered | 33% | 1–3mm | ✓ In stock |
| R4 T6 | 4mm round | 6mm staggered | 40% | 1–3mm | ✓ In stock |
The nearest mild steel round hole patterns to R2.5 T3.5. See every mild steel pattern →
Dimensions are nominal and weights approximate. Stock changes daily, so please call to confirm.




