| 1. Quantity - State the number of Perforated Pieces required. | |
| 2. Thickness - Specify in gage numbers or in decimal inches. | |
| 3. Material - State kind of material required. | |
| 4. Width & Length - Unless otherwise specified, the length will be the long dimension of sheet. | |
| 5. Perforation Size - Specify the size of perforation in inches. | |
| 6. Arrangement of Perforations - Specify "Staggered" or "Straight Line" or other patterns. Normally the straight row of a staggered pattern will run the long way of the sheet. | |
| 7. Spacing of Perforations - This can be specified as the distance between hole centers, the percent of Open Area or in the case of small holes, as the number of holes per square inch. | |
| 8. Margins - If margins are not important specify "minimum or no margins." | |
| 9. Other information - For slotted perforations- specify whether the long dimension of the slot is parallel to the long or short dimension of the sheet or plate. |
NOTE: If ordering Perforated Screen Plates for Vibrating or Revolving Screening Equipment, ask your perforator for IPA bulletin #512.
