| Grid Spacing | 1/2 inch |
| Paper Size | Letter |
| Columns | 15 |
| Rows | 20 |
| Total Squares | 300 |
| Vertical Lines | 16 |
| Horizontal Lines | 21 |
| Total Lines | 37 |
| Grid Spacing | Columns | Rows | Total Squares |
|---|---|---|---|
| 1mm | 195 | 259 | 50,505 |
| 2mm | 97 | 129 | 12,513 |
| 3mm | 65 | 86 | 5,590 |
| 5mm | 39 | 51 | 1,989 |
| 1/4 inch | 30 | 40 | 1,200 |
| 7mm | 27 | 37 | 999 |
| 10mm | 19 | 25 | 475 |
| 1/2 inch (current) | 15 | 20 | 300 |
| 1 inch | 7 | 10 | 70 |