If you have one square per inch, a one foot long board would be 12 squares long on the drawing
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
If 1 square represents 2 inches, a one foot long board would be 6 squares long on the drawing
| 2 | 4 | 6 | 8 | 10 | 12 |
If 1 square represents 3 inches, a one foot long board would be 4 squares long on the drawing
| 3 | 6 | 9 | 12 |