Te Puia chief executive Tim Cossar said it was the largest wooden carving in New Zealand.
About 20 carvers - the entire Carving School, including students and tutors - had been involved in creating the native timber mahau.
Only native woods had been used, including a huge piece of kauri which was carbon-dated at 4500 years old.
New Zealand Maori Arts and Crafts Institute director Karl Johnstone said the sheer size of the carving meant its creation and transportation had been a major logistical exercise.
Carving has been done inside the carving school and outside under cover during the past few months.
"Over the past week, we've been working with engineers to prepare the pieces for transportation, with cranes being used to manoeuvre the works on to several large trucks."
Engineers will erect the mahau structure before Te Matatini begins in 12 days.
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