Repair rotten wood in post

[janwide]

I have a glazed patio from somewhere in the 80s. Everything is fresh and good. But the other day I noticed that one of the posts has a rotten part. I started fiddling with it today and now I have removed all the rotten wood. The original plan was to remove the bad part and insert a new piece of wood, but it is very difficult to fit something that matches the cavity I have made. It is also difficult to try and make a better cavity since the area is very tight and tricky.

What do I do?

 

[cpalm]

but it will be very difficult to fit something into the recess I have made

As you mentioned, you have now done the easy/fun part of the job and now it remains to keep chiseling out fresh wood so you get flat surfaces to inlay a new piece of wood. Chisels and a multi-saw are suitable tools. Unfortunately, there are no direct shortcuts, you just have to tough it out 🙂

 

[janwide]

Does anyone know if it's possible to even out at least the most inaccessible "holes" with something like plastic wood?

 

[cpalm]

Anyone know if it works to level at least the most inaccessible "holes" with something like plastic wood?

No, don't do it. I realize it might be tempting, but non-hygroscopic materials tightly against wood in an exposed position will only cause more rot.

 

[fribygg]

How do I do it?

Replace the entire post.

 

[janwide]

Replace the entire post.

That is the last resort. The construction is a bit unique, so it becomes very complicated.

 

[janwide]

It shouldn't matter if there is a cavity behind the pieces used to repair. The most important thing must be that it becomes sealed outward, so to speak?

 

[janwide]

I've now chiseled and worked to remove all the rotten wood and fitted new pieces. Glued with PU glue and then primed with primer. I've used some plastic wood in a couple of small places but otherwise, it's new wood. everywhere. I'm quite satisfied. Looks completely ok.

 

[andreascarlsson]

Looks quite okay and will probably last ten years+!
Oil and paint a lot, make sure to divert water that would otherwise end up on the post.

 

[janwide]

This is how it turned out. Some painting left but I'm saving that for the spring. At least it's weatherproofed now.