Friday is the final day of hearings into the fatal collapse of the Canterbury Television building.
Over the past eight weeks, the Canterbury Earthquakes Royal Commission has heard evidence from dozens of witnesses, including those involved with the building's design and construction.
The Fire Service is to give evidence about the fire in the building after it collapsed in the February 2011 quake, killing 115 people.
The principal of the company that designed the building will also speak.
Commissioners are expected to sum up the hearings in a couple of weeks and a coroner's inquest into the deaths will reconvene at the end of October.
It will focus on six people who survived the initial collapse, but were unable to be rescued.