If he was a builder then his material was probably stone as wood was in short supply in the middle east. Carpenters would have been building doors and windows, and furnishings. Even today, 80% of the world population lives in stone built houses.
Which might imply that one who worked in stone might also work in wood.
Also, a stonemason, even at that time, was a craft which required a lenghty appreticeship.