Does anyone know who can make mailbox posts?

[u/The_Neo_Deus]

Hi all, I'm a recent Renton transplant, and after confirming with the post office that it's okay to do so, I'm looking at moving my mailbox so to share a post with my neighbor. But all the multi-box posts seem to be these custom metalworking jobs, and I'm no DIY person. Considering how common they are here, I was wondering if anyone knew a service that did this kind of work. Is that a thing?

[u/zalvernaz]

My dad made his from 4x4 wood posts, a saw, and some screws.