yes, it is exactly that:
The cardboard cathedral can accommodate up to 700 people
http://www.bbc.co.uk/news/world-asia-23698795

The cardboard cathedral can accommodate up to 700 people
New Zealand's city of Christchurch has formally marked the completion of its new cardboard cathedral with a dedication service.
The structure, which uses thick cardboard tubes, temporarily replaces the one damaged by the 2011 earthquake until a permanent one can be built.
http://www.bbc.co.uk/news/world-asia-23698795