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Hi my name is Don and I have a question about stopping wood checking/cracking. I have 8x8 treated wood posts for my porch. This is a new build and they have been installed for 10 months. I am see some large cracks and I would like to know if there are any additional ideas other than wood filler or glue to stop them. In my past I have drilled holes in metal to stop the propagation of the cracks. Would this work?
You can't stop it. It's a natural aspect of that particular post to crack as the wood shrinks in the drying process. It may not have been seasoned properly or if it's pressure treated takes a very long time to season after being treated. The best thing you can do is let it sit until it stops cracking and cut a pie shaped strip of wood and insert it in the crack with some exterior glue. The shave off what sticks out and finish it.
 
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