Hello Mastiff owners, I have an 8 month old Tibetan mastiff x Boerboel he has had another growth spurt recently and is 67cm at the withers. His dad was a TM and his mom a BB. What I have noticed from searching for the height of a Tibetan mastiff is that many places say different things. Google says 76cm max, many places say 71cm max, Wikipedia says 83cm max, and the breed standard says that there is no maximum height for a TM. Does anyone know the maximum height that a TM can reach? Any replies are much appreciated.