Submitted by Steiner1988 t3_115jwfv in DIY
Back in the summer i replaced rusted wrought iron posts with pressure treated 4x4s on my front porch. Today i noticed the two inner posts are badly warped or buckled. I assumed 4x4s would be sufficient enough to carry the load of the porch roof considering it only had wrought iron. I did however use the posts the day I got them from Lowes, so they were still wet.
So i guess my question is did I mess up by using wet pressure treated wood and immediately putting them under load, or are the 4x4s not sufficient enough for the load?
The porch is around 20 feet long, 7 feet wide. The posts are almost 8 feet long mounted to the bottom of the fascia boards. One post at each corner and the two inner ones evenly split. The only thing it's holding up is an old porch roof. They're sitting on a concrete porch slab. The two posts at the corners are not buckled nearly as bad as the two in the middle.
Uncanevale t1_j92l4hh wrote
4x4s are mostly garbage for this very reason.
https://www.familyhandyman.com/article/choosing-4x4-wood/