Slowly jack up the floor.
How to jack up a wood floor.
Keep an eye on the girder so that it does not get out of position and try to roll.
Stack 8 x 12 blocks two wide in a criss cross pattern until they as close to the bottom of the girders as possible.
You cannot jack up a house in one day.
Once the floor is at the right level jack it up just a little bit higher.
Jacking must proceed slowly.
It took a long time for your floor to sink so you can t push it back up quickly without causing cracks and stress in the building.
Jack up that portion of the house and place new footers.
As with other structural repairs jacking must also be done appropriately.
In this series i am taking an old 10 x 14 foot pre fab shed and making it a finished office and.
It has to be jacked up slowly over days or even weeks to avoid cracking drywall plaster windows and even structural elements.
Use a string to watch the floor come up.