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mmphoto412 t1_jadonqa wrote

Reply to comment by konsyr in Viewing homes in the area by Ar30la

That’s not a jack post. That’s the post put in place when the home was built to support a steel beam.

Jack posts are put in later to prop up a saggy beam or floor

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mrbuttsavage t1_jaer88y wrote

Also that Lally column is full of concrete unlike jack posts.

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konsyr t1_jaerrad wrote

> Lally column

Now I know there's a separate word for them. I've always just called all of them "jackpost". Thank you.

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