Japanese practice How to count「棟,とう,tou」 It's used to count things like a large building 1棟　いっとうittou 2棟　にとうnitou 3棟　さんとうsantou 4棟　よんとうyontou 5棟　ごとうgotou 6棟　ろくとうrokutou 7棟　ななとうnanatou 8棟　はっとうhattou 9棟　きゅうとうkyuutou 10棟　じゅっとうjyuttou