Yes. That's how everything works. If you don't know how to build a shelf by yourself or don't have the time, you pay a carpenter to do what you want.
It's now the carpenter's problem to make the shelf with the specifications that you gave him.
Yes. That's how everything works. If you don't know how to build a shelf by yourself or don't have the time, you pay a carpenter to do what you want.
It's now the carpenter's problem to make the shelf with the specifications that you gave him.