[diyntn]

Treated 4x4's as deck posts...have warped over the years.

I've thought of 1x6 wraparounds...and I've seen those premade ones at Lowes that attach to an existing deck and bolt on the bottom. Sure don't seem very sturdy....
Any workarounds or fixes for this except redigging/setting new posts?

 

[jaros bros.]

PT 4x4 are notorious for warping and twisting. IMO, the fastest, cheapest, and least labor intensive option is to replace them with #1 PT or 6x6 PT. Trying to fudge them with planing and trim is going to be a hassle and in the end you have more parts to fail.

 

[AtlanticWBConst.]

PT 4x4 are notorious for warping and twisting. IMO, the fastest, cheapest, and least labor intensive option is to replace them with #1 PT or 6x6 PT. Trying to fudge them with planing and trim is going to be a hassle and in the end you have more parts to fail.

+ 1

We only use 6x6's for Deck support posts as well.