We can call them as Boat Builders.
Boatwright ; one who makes boats .
a boatwright
A boatmaker is a person who makes or manufactures boats.
What We call a person who makes sculpture
A person who makes of
What We call a person who makes sculpture
A boatwright is a person who makes boats, especially of traditional wooden construction.
A person who makes maps is a cartographer.
You might call a person who makes burgers a "hamburger cook," "cook," or "grill chef."
They would also call them boats.
A person who makes cart wheels is a wheelwright.
The person is a steel-worker.