Many factors combine to determine the most effective standard or custom sign size: Visibility, message content, emphasis, layout, and which (if any) header is used. 

Sign size should be determined by: 

  1. The distance at which the sign must be legible.
  2. The time needed for the reader to avoid the potential hazard.
  3. Whether favorable or unfavorable reading conditions exist.

This table gives you an idea of the recommended size of the letters and the sign, given the criteria above.

Stonehouse Signs Letter Size and Visibility Distance Comparison Chart

Our Expert Account Managers can also provide some general sign size recommendations based on current industry standards and the factors outlined above. 

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