Standard Braille signage layout showing the geometric dimensions for raised dots, blank cells, and character spacing. The rounded dot height measures 0.025 to 0.037 inches with a base diameter between 0.059 and 0.063 inches. The distance between dots in the same cell measures 0.10 inches, while the distance between corresponding dots in adjacent cells is 0.30 inches. The distance between corresponding dots from one cell directly below is 0.395 to 0.40 inches.
BRAILLE MEASUREMENT BRAILLE DOT ROUNDED DOT HEIGHT = 0.025" - 0.037" NO RAISED DOT BLANK CELL SPACE BETWEEN WORDS BASE DIAMETER 0.059" - 0.063" RAISED DOT SINGLE BRAILLE CELL DISTANCE BETWEEN CORRESPONDING DOTS FROM ONE CELL DIRECTLY BELOW = 0.395 - 0.40 DISTANCE BETWEEN DOTS IN THE SAME CELL = 0.10 DISTANCE BETWEEN CORRESPONDING DOTS IN ADJACENT CELLS = 0.30 DISTANCE BETWEEN DOTS IN THE SAME CELL = 0.10
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