So I have a joist that stops short of a stairwell and doesn’t connect to the foundation and I’m going to move the supporting beam back 2 feet (it’s about an 8 ft run between the header and other supporting beams). I’ve talked to a number of guys and they said the moving that 2 feet back won’t be dangerous.

So I’m installing an adjustable steel column to the 2x8 wooden joist and the fastening the post to the concrete. 1) can I use Tapcon Masonry Screws or do I need Tapcon Concrete screws? 2) what would be a sufficient length and diameter of screw 3) Because this post is adjustable and I’m not pouring concrete over the top of it, do I need to do anything to “lock” it into place for code.

Here is a link to the column I’m purchasing: https://www.menards.com/main/p-1444423416220-c-5725.htm?tid=3647805878147678020

So I have a joist that stops short of a stairwell and doesn’t connect to the foundation and I’m going to move the supporting beam back 2 feet (it’s about an 8 ft run between the header and other supporting beams). I’ve talked to a number of guys and they said the moving that 2 feet back won’t be dangerous.

So I’m installing an adjustable steel column to the 2x8 wooden joist and the fastening the post to the concrete. 1) can I use Tapcon Masonry Screws or do I need Tapcon Concrete screws? 2) what would be a sufficient length and diameter of screw 3) Because this post is adjustable and I’m not pouring concrete over the top of it, do I need to do anything to “lock” it into place for code.

Here is a link to the column I’m purchasing: https://www.menards.com/main/p-1444423416220-c-5725.htm?tid=3647805878147678020

Or would I be better off using a treated 4x4? If that's the case, how can I fasten the 4x4 to the 2x8 joist?