Car stackers are becoming increasingly popular in New Zealand as a space-efficient solution for residential and commercial motor vehicle parking. These mechanical systems allow multiple vehicles to be parked vertically, maximising land use in dense urban areas. However, their introduction raises important fire safety considerations for both Fire & Emergency NZ and the NZ Building Code. Systems range from simple two-car stackers to dedicated shafts in high-rise buildings capable of holding upwards of 30 vehicles.

The NZBC requires that buildings, including car parking structures, be designed to safeguard people from the effects of fire and to facilitate firefighting operations. With car stackers, additional risks include restricted access for fire crews, more rapid fire growth, and increased difficulty in fire suppression. Designers must consider sufficient fire ratings, smoke ventilation, and reliable power supply for stacker operation during emergencies. Sprinkler protection is a minimum requirement by both C/AS2 and a recent FENZ Guideline published earlier this year – see link: https://www.fireandemergency.nz/assets/Documents/Business-and-Landlords/Building-and-designing-for-fire-safety/F5-13-GD-FFO-Buildings-with-multi-tiered-vehicle-stacking.pdf

Early engagement with fire engineers and FENZ is essential to ensure compliance.

For any queries contact Dallen Chan, Senior Fire Engineer , dallen.chan@covekinloch.co.nz or 022 122 4752