Signs on panels in lifts, room numbers of rooms in hotels, doors to public toilets and so on shall be raised tactile and include Braille (see also B-24.2.4).
The preferred height of raised tactile information is between 1 200 mm and 1 600 mm. Signs with tactile information placed at a lower height should be mounted at an angle from the horizontal (preferably to , maximum ).

Key
1 Raised tactile letters and graphical symbols, height 15 mm to 55 mm, minimum relief 0.8 mm (1 mm to 1.5 mm relief is preferred)
2 Braille text
3 Braille Locator
FIG. 104 EXAMPLE OF RAISED TACTILE SIGNS AND BRAILLE
B-24.2.11 Tactile Letters, Figures, Signs and Graphical Symbols
The height of letters, figures, signs and graphical symbols shall be between 15 mm and 55 mm (see Fig. 104).
The minimum height of its relief shall be ; a height between and is preferred (see Fig. 104).
The profile of the relief should be shaped as a rounded upside-down turned letter V.