ADA
Signage Guidelines and Specifications

Sign Finish & Contrast

The colors selected for the characters and symbols on a sign should be in marked contrast to the sign color. The characters and backgrounds of the signs must be eggshell, matte or some other non-glare surface.

Tactile & Braille Characters

Characters must be raised exactly 1/32". Grade 2 Braille must accompany characters. Typestyles Characters must be in upper case and sans serif or a simple serif style.

Typestyles

Characters must be in upper case and sans serif or a simple serif style. Characters must have a width-to-stroke ratio of between 3:5 and 1:1. Characters must have a stroke width-to-height ratio of between 1:5 and 1:10.

Character Height

Tactile characters must be a minimum 5/8" high, a maximum 2", all caps. Characters on overhead signs must be a minimum 3" high. Characters on Directional and Informational signs must be sized to viewing distance.