The Hawaii Carpenters Union has endorsed Honolulu Prosecutor Peter Carlisle for Honolulu mayor.

The carpenters union is the state’s largest private-sector construction union, with 7,000 members.

Ron Taketa, the union’s financial secretary and business representative, said Carlisle is firmly committed to the city’s rail transit project.

“He is fully committed to getting it built — from start to finish — and he supports the creation of the transit authority as part of getting it done,” Taketa said.

Taketa also praised Carlisle’s administrative and legal abilities.

Carlisle is running for mayor against city Managing Director Kirk Caldwell, City Councilman Donovan Dela Cruz, City Councilman Rod Tam and University of Hawaii-Manoa engineering professor Panos Prevedouros.