Usage patterns
体格がいいto have a good/strong physique
Because he has a strong build, he was quickly invited to join the judo club.
体格に恵まれるto be blessed with a good physique
He is blessed with a great build and excels at whatever sport he tries.
〈形容詞〉体格a [adjective] build (e.g. sturdy, large)
He has an extremely sturdy build.
体格を鍛えるto build up one's physique
He trains every day to build up his physique.