Requirements for Braille & Tactile Signage

Posted by Bractile on

When checking if a braille and tactile sign complies with the Building Code of Australia Clause & Specification D3.6, Disability Access to Premises Standard and Australian Standard AS1428.1 Design for access and mobility – General requirements for access – New building work, the following are the key items that need to be checked.

  • Tactile characters must be raised or embossed to a height of not less than 1mm and not more than 1.5mm.
  • Upper case tactile characters must have a height of not less than 15mm and not more than 55mm.
  • Lower case tactile characters must have a height of 50% of the related upper case characters. 
  • Tactile characters, symbols, and the like, must have rounded edges.
  • The entire sign, including any frame, must have all edges rounded (Not just corners).
  • The surface of the sign must be continuous for hygiene purposes.
  • Signs must be constructed so as to resist the removal of letters and braille dots by picking or adhesive failure.
  • The background, negative space or fill of signs must be of matt or low sheen finish.
  • The characters, symbols, logos and other features of signs must be matt or low sheen finish.
  • The minimum letter spacing of tactile characters on signs must be 2mm.
  • The minimum word spacing of tactile characters on signs must be 10mm.
  • Fonts with letters of constant stroke thickness must be used.
  • The thickness of letter strokes must be not less than 2 mm and not more than 7 mm.
  • Tactile text must be left justified, except that single words may be centre justified.
  • Braille must be raised and domed.
  • Braille must be located 8 mm below the bottom line of text.
  • On signs with multiple lines of text and characters, a semi-circular braille locator at the left margin must be horizontally aligned with the first line of braille text. 


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