How it Works.
The Australian Standards AS/NZS 1428 requires a minimum level of luminance contrast between certain building elements, including the application of stair nosings and tactile indicators. This is reinforced by the Building Code of Australia (BCA).
This free online calculator is your quick guide to compliance, providing you with the luminance contrast value for dry and wet readings, with a Pass or Fail to Australian Standards. As well as getting instant readings, you can have a report with the results emailed to you.
To get started you simply enter the LRV of the stair or floor substrate you are using (if LRV is unknown ask the supplier). The calculator does the rest based on the pre-populated LRV of the stair nosing or tactile ground surface indicator (TGSI) type selected.