Sound tile
tactile warning
for outdoors

type KTB-02/KTB-07

This type of sound tile is used as a crossing marker to make blind and visually impaired people aware that they are approaching a road or a junction, as a marker at steps going down or to indicate the end of a tactile guideway. Soundtiles are made of aluminium and are topped up with concrete; when tapped with the cane or foot, the sound box on the upper side produces a sound different from that of the surrounding pavement.

The tiles have a coarse blister pattern and as a result are easily recognisable. For the sake of slip resistance, the tiles are sandblasted. The anodising process makes the tiles corrosion-resistant, wear-resistant and gives them a silver/white colour.


Type: TGKTB-02 (cement-bedded) or TGKTB-07 (sand-bedded)

Dimensions: 30 x 30 x 2 cm (KTB-02) and 30 x 30 x 6.5 cm (KTB-07)

Material: aluminium, sandblasted and anodised

Colour: (matte) silver

Profile: 25 conical blisters in a straight pattern + 16 x anti-slip dot profiles between blisters

Base Ø: 25 mm

Top Ø: 15 mm

Height: 5 mm

Centre-to-centre dimension: 60 mm in straight pattern

Unique Selling Points

  • Robust
  • Corrosion-resistant
  • Wear-resistant
  • High contrast value
  • Also discernable by sense of sound