That Jesus was a carpenter is only a Christian tradition. Houses in Palestine aren't made of wood. The Greek word "tekton" means anything from craftsman to architect and has many spiritual applications as well. How it is used in reference to Jesus is unclear.

https://www.scribd.com/document/693114124/Is-This-Not-the-%CE%A4%CE%B5-%CE%BA%CF%84%CF%89%CE%BD-Revisiting-Jesus-s-Vocation-in-Mark-6-3-by-Matthew-K-Robinson