There are several common errors that designers and facility managers can make when creating ADA signage. Here are a few of the most common ADA signage errors:

1. Non-Compliant Font: One of the most common ADA signage errors is using a non-compliant font. The ADA requires that sans-serif fonts be used for all signs, and the font size must be between 5/8 inch and 2 inches in height. Some fonts have decorative elements that can make them difficult to read, and may not meet the ADA requirements.
2. Inadequate Contrast: Another common error is using colors that don't provide adequate contrast between the text and the background. The ADA requires that there be a minimum contrast ratio of 70% between the background color and the text color. If the colors are too similar, it can make the text difficult to read for people with visual impairments.
3. Incorrect Spacing: ADA signage requires specific spacing between characters, lines of text, and graphic elements. For example, the braille characters must be positioned directly below the text and be spaced 3/8 inch apart. If the spacing is incorrect, it can make the sign difficult to read or even unusable for people with disabilities.
4. Improper Mounting: The ADA requires that signs be mounted in specific locations to ensure they are visible and accessible to people with disabilities. Signs should be mounted between 48 and 60 inches from the floor, and there should be a clear space around the sign to ensure that it can be read easily.