Setting the right size

Cap heights for distance and pace

Pedestrian type sizes

Recommended cap height of letters for reading distances

• Tactile lettering 15 mm (55 mm maximum).

• 2 metres – 6 mm

• 4 metres – 12 mm (17 mm – door signs)

• 6 metres – 20 mm (building directory listings)

• 8 metres – 25 mm (30 mm, internal direction signs)

• 12 metres – 40 mm

• 15 metres – 50 mm (60 mm external pedestrian direction signs)

• 25 metres – 80 mm

• 40 metres – 130 mm

• 50 metres – 150 mm

Vision impaired type sizes

Recommended minimum height of letters for viewing by people with low vision:

15 mm – Building Directories

30 mm – Identification Signs

40 mm – Internal information & directional

120 mm – Location information

200 mm – Building facia/facade

Source NHS Wayfinding Guidelines, Australian Standard AS 1428.2

Drivers

60 mm – low speed environments: driver direction signs, internal roads, and carparks