What evidence is there that Jesus was a carpenter? I was about to say this in another discussion somewhere else, and wondered: do we know that?  As in "it's mentioned or at least hinted at in $book $chapter:$verse"?

Or is it just a very likely conjecture?
We know that Joseph was a τέκτων (tekton)- traditionally a carpenter but literally, any craftsman who worked with his hands, from Matthew 13:55 (Is this not the carpenter's son?).  Traditionally, boys would follow in their father's occupation, hence the tradition that Jesus was a carpenter.

Additionally in Mark 6:3, we get the same word describing Jesus himself. (Is this not the carpenter?). Mark is probably the older source ( the Farrer hypothesis ) from which Matthew is drawing. With Matthew's desire to portray Jesus as king, it makes sense that he would prefer to move such a menial task to the dad and let people just assume that Jesus would have been trained up in the family trade.