According to the Building Code of Australia (BCA), “Any access way or landing area where there is a fall distance of 1 metre or more above the surrounding ground level requires a barrier (Balustrading) to protect people from falling over the edge. The minimum height of a balustrade is 1 metre (1000mm) and if protecting a pool area, access would need to be 1.2 metres (1200mm).” From any stair nose, the glass balustrade requirement is at least 865mm (0.865 metres).