We're planning on resurfacing our deck this summer. As preparation I got an inspector to take a look at the substructure to make sure it is still in good shape. The good news is that for the most part it is. However, he recommended that 5 of the 4x4 vertical support posts be replaces with 6x6 posts instead. The 4x4s aren't failing but they are attached to the beam incorrectly (just with lag bolts, as in the "wrong" example here) and they are about 6 feet high. It's more about future-proofing than an imminent safety issue.
I called around for quotes and the first contractor I talked to basically said it can't be done and I need to tear down my deck and start over. This surprised me. There are videos all over youtube with people doing this. The process seems straightforward enough:
- Dig/pour new footings
- Jack up the deck with temporary vertical posts
- Add the new ones
- Cut out the old ones.
Am I missing something?
As an alternative, I've considered just adding 3 more 4x4 posts and attaching those to the beam (and retrofitting the old ones) with these
Screen grab of the relevant section of the inspection report: