does this jack up the floor or just hold it in place once it is jacked up?
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I would use it to jack the floor slightly and then put a permanent support underneath such as a pier. It will hold it in place but may loosen over time and is not a permanent solution.
Was this Answer Helpful ?It can do both, if you don't need to jack up something for more than 3".
Was this Answer Helpful ?Both
Was this Answer Helpful ?It jacks it up and holds it in place. Be sure to have a good footing to jack against
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