The ADA reference guide PDF is available on request. Contact Michael.
Raised characters — §703.2
Raised tactile character requirements| Requirement | Limit |
|---|
| Relief | 1/32 in. (0.8 mm) minimum above the panel surface |
| Case | Uppercase only |
| Style | Sans serif. Not italic, oblique, script, highly decorative, or other unusual form |
| Height | 5/8 in. (16 mm) minimum to 2 in. (51 mm) maximum, based on the uppercase I |
| Width | 55% to 110% of character height, based on the uppercase I |
| Stroke thickness | 15% maximum of character height, based on the uppercase I |
| Character spacing | 1/8 in. (3.2 mm) minimum between closest points; 1/16 in. (1.6 mm) minimum at the base when characters are rounded or beveled |
| Line spacing | 135% to 170% of character height, baseline to baseline |
Braille — §703.3
Grade 2 (contracted) Braille with domed or rounded dots, complying with ADA Table 703.3.1. Place Braille directly below the corresponding tactile text. On multiline text, place it below the last line, flush left or centered. Separate Braille at least 3/8 in. (9.5 mm) from other tactile characters and from raised borders. Braille translation, if needed, is quoted per job. We manufacture from the production-ready art you supply, including the braille. Translation accuracy is the customer's responsibility. Drawings show size and position only.
Braille dot geometry| Dimension | Range |
|---|
| Dot base diameter | 0.059–0.063 in. |
| Dot height | 0.025–0.037 in. |
| Distance between dots within a cell | 0.090–0.100 in. |
| Distance between corresponding dots in adjacent cells | 0.241–0.300 in. |
| Distance between corresponding dots, line to line | 0.395–0.400 in. |
Visual characters, pictograms, and finish
Visual, pictogram, and finish requirements| Topic | Requirement |
|---|
| Visual characters — §703.5 | Non-glare finish, 70% minimum contrast, character height suited to viewing distance and mounting height per §703.5.5 |
| Pictograms — §703.6 | Field 6 in. (150 mm) minimum in height, non-glare, 70% minimum contrast. Tactile text and Braille go below the field, not inside it, when the pictogram names a permanent room or space |
| Finish — §703.5.1 | Characters, symbols, and backgrounds: eggshell, matte, or other non-glare finish, with 70% minimum contrast |
Installation — §703.4
Mounting height and location| Condition | Requirement |
|---|
| Height — §703.4.1 | Baseline of the lowest tactile character 48 in. (1220 mm) minimum above the finish floor. Baseline of the highest tactile character 60 in. (1525 mm) maximum |
| Single door | Latch side |
| Double doors, one active leaf | Inactive leaf |
| Double doors, two active leaves | To the right of the right-hand door |
| No wall space at the latch side | Nearest adjacent wall, including at recessed doors |
| Clear floor space | 18 in. × 18 in. (455 × 455 mm) minimum, centered on the tactile characters, beyond the arc of any door swing from closed to 45 degrees open |
The same requirements are written into Section 10 14 00, Parts 2.2 and 3.3.
