I think you mean Matai. For those that do not know the boat
is Kauri and sometimes Kahikatea, floor joists can be Rimu, a sacred tree is Totara and a few other woods are Taraire, Kohekohe, Pukatea, Tawa, Towai, Tanekaha, Rewarewa, Tawhai and Mangeao and the good old chippies new them all. Used to be you could get marine plywood
in a wide variety of native woods but I doubt you can today. They stopped logging Kauri about 1969.
BC Mike C