How To Jack Up Floor From Crawl Space

Checking joists is easier if you have a basement or crawl space foundation because the joists are exposed.

How to jack up floor from crawl space.

Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. Posts set on dirt floors should be upgraded to concrete pads with footings. Drive 16 penny nails through the holes in the plates and into the wood framing. Center the screw jack below the girder and on top of the wood block on the concrete pier.

Underneath the floor in a crawl space or basement position the floor jack or jacks and place the beam in position. Adjust the screw jack so that the top and bottom plates are flush to the wood surfaces above and below. Slowly jack up the floor. Block under each one until there is just enough room to fit the girder between the jacks and the joists.

Continue to raise the jack until you feel some resistance. 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. Lower the hydraulic jack to transfer the floor load to the new screw jack. Place wood posts on metal post supports to create a waterproof barrier between the post and the footing.

Keep an eye on the girder so that it does not get out of position and try to roll. Use a string to watch the floor come up. To check joists and diagnose the problem a pro must pull up the flooring and the subfloor to see what shape they re in. The best way to permanently solve sagging bouncy floor problems is to install smartjack posts beneath the beam that supports your crawl space joists.

Each smartjack post rests on a precast concrete pad that is set on a base of compacted stone. Tiger brand adjustable floor jack model js 15 15 gauge floor jacks telescoping jack for temporary support size range 1 1 3 4 4 out of 5 stars 368 19 67 19. Carefully hoist the jack until the beam reaches the floor underneath. Deteriorating floor joists posts or beams can be caused by termite infestation water damage or dry rot.

When this happens stop hoisting the jack and lock it in place.