How To Jack Up A Floor In A House

In this style framing the entire structure will sag in that area usually causing cracks in walls ceilings or doors rubbing their frame you will need a proper footing under the post jack because your lifting much more weight if your correcting a sagging interior floor in ether style framing locate the main support beam in that area the large beam that the floor joist are sitting on raise that area keep in mind if its drastic have the foundation evaluated.

How to jack up a floor in a house. Make sure that the lumber or lally posts are perpendicular when jacking or they may slip out of position. Figure 3 jacking up floor joists raise each jack by 1 8 inch at a time this will help to reduce any damage to window frames and plaster or drywall walls above the floor. Underneath the floor in a crawl space or basement position the floor jack or jacks and place the beam in position.

Anything involving 20 ton house jacks will take time. When this happens stop hoisting the jack and lock it in place. Place a jack on the inside edge of each outside footing.

Continue to raise the jack until you feel some resistance. Slowly jack up the floor. Carefully hoist the jack until the beam reaches the floor underneath.

Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. The 4 inch lally posts can be replaced by 6 x 6 inch lumber. It has to be jacked up slowly over days or even weeks to avoid cracking drywall plaster windows and even structural elements.

Level the tops and allow the mix to set for at least two days. Jack up that portion of the house and place new footers. Block under each one until there is just enough room to fit the girder between the jacks and the joists.