Chris Haines, RLB Auckland director, said all that work that spelt scarcities in the sector.
"The construction industry in Auckland is now stretching the supply chain across the North Island. There remains resource and supply concerns," he said, referring to SkyCity's Convention Centre build, the City Rail Link underground tunnels from Britomart to Mt Eden and Precinct Properties' Commercial Bay development on the Downtown waterfront site about to begin.
"As a way to cope with this high level of contractor demand, we are seeing an increasingly active Australian contingent of main contractors and subcontractors working in the Auckland market, in turn putting pressure on the Aussie supply chain," Haines said.
Throughout New Zealand, 98 tower cranes are up and working on busy sites. Large-scale residential construction has resulted in 12 cranes going up on housing sites throughout the country, Haines said.
But the commercial sector accounts for 42 per cent of all cranes up nationally.
The index report showed how strong economic growth had prompted strong building activity levels and referred to population growth, demand for more offices, public sector spending on education buildings, tourism growth and domestic demand for accommodation.
See the latest RLB Crane Index report here: