Importance of Handrail Heights, Extensions & Terminations

Based on AS1428.1-2009 and Clause D2.17 of the BCA 2019 V1 A1 (NCC), the specified handrail requirements are as follows:

• Height between 865-1000mm high (1000mm height also suitable for balustrade requirements)

• Extensions top landing minimum 300mm + return

• Extension bottom landing minimum 550mm + return

• Terminations 180 degree to ground or wall (this is in addition to the required extensions)

It is noted that other similar countries to Australia, such as America, Singapore or the UK have different handrail requirements which may be referenced within a performance solution to justify a deviation to the D-t-S requirements specified above.

Furthermore it is worth noting that a handrails primary function is to prevent a fall and most serious falls occur when descending - not ascending, therefore it is important to ensure the handrail is at the required height and has the required extensions to provide additional assistance whilst ascending or descending, including terminations which prevent young children from injuring themselves if they are at the same height as the handrail.