Guardrail
A rail or barrier secured to standards or upright members, at a height above the
work platform of 900 mm (minimum) to 1100 mm (maximum) and erected along the
exposed sides and ends of working platforms to prevent persons from falling. It
includes a lower rail that is fixed to standards midway between the guardrail and the
platform. See the SARNZ Best Practice Guidelines for Scaffolding in New Zealand.