Letter Visibility on Signs
| Viewing Distance (feet) |
Minimum Required Letter Height (inches) |
| 100' | 4" |
| 250' | 10" |
| 360' | 16" |
| 500' | 22" |
| 750' | 33" |
| 1000' | 43" |
| 1320' (1/4 mile) |
57" |
This letter visibility chart has been made for you
based uponinformation provided by Pennsylvania Transportation
Institute,Penn State University and the United States
Sign Council(USSC). Please refer to the complete
study for additional information. For further details
contact the USSC at 1-215-785-1922