FAQ

How to determine the maximum readable distance
of letters and numbers.

 
VISIBILITY-CHART2.jpg
This letter visibility chart has been made for you based on information provided by the California Institute of Technology. 
The calculations are based on an externally (naturally) lighted sign with all upper case Helvetica letters utilizing optimal negative space. Factors that may affect required letter size are: color scheme, font selection, traffic and weather conditions, or sign standoff. The stronger the contrast between the colors of your background and your letters, the better the visibility. 
 

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