2012 Florida Accessibility Code for Building Construction Pocket Guide
703.3.1 Dimensions and Capitalization. Braille dots shall have a domed or rounded shape and shall comply with Table 703.3.1. The indication of an uppercase letter or letters shall only be used before the first word of sentences, proper nouns and names, individual letters of the alphabet, initials, and acronyms.
Table 703.3.1 Braille Dimensions
|
MEASUREMENT RANGE |
MINIMUM IN INCHES MAXIMUM IN INCHES |
|---|---|
|
Dot base diameter |
0.059 (1.5 mm) to 0.063 (1.6 mm) |
|
Distance between two dots in the same cell1 |
0.090 (2.3 mm) to 0.100 (2.5 mm) |
|
Distance between corresponding dots in adjacent cells1 |
0.241 (6.1 mm) to 0.300 (7.6 mm) |
|
Dot height |
0.025 (0.6 mm) to 0.037 (0.9 mm) |
|
Distance between corresponding dots from one cell directly below1 |
0.395 (10 mm) to 0.400 (10.2 mm) |
Figure 703.3.1 Braille Measurement
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