rot resisant wood

Wiki: Naturally rot-resistant woods These species are resistant to decay in their natural state, due to high levels of organic chemicals called extractives, mainly polyphenols. Extractives are chemicals that are deposited in the heartwood of certain tree species as they convert sapwood to heartwood. Huon pine, merbau, ironbark, tōtara, puriri, kauri, and many cypresses, such … Read more