Wooden shims are often used to work out squeaks and stabilize spongy areas but they can also be used for slight adjustments to specific places.
How to lift floor joists with jacks.
Jacks at each end of these beams lift the house.
If the correction is minor only a 1 4 inch over an 8 foot span using shims between the floor joist and the subflooring can often rectify it without the need to raise the floor joist with a jack.
Houses of other shapes or larger homes may require more jacks.
We used 18 000 pound screw jacks 4x4 lumber a circular saw power drill driver and cement blocks.
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.
The long term solution for your sagging floor is to remove the flooring replace or fix the problems with the foundation that may contribute to the sag and replace the flooring.
Movers may use larger jacks but four 12 ton bottle jacks should lift most homes.
Cost time and skills.
The only tools required is a bottle jack string straight claw hammer circular saw and a light source.
Drive 16 penny nails through the holes in the plates and into the wood framing.
This job took two people one afternoon.
Find jack posts at lowe s today.
Total cost was less than 200 while a pro would charge 500 1000.
Lower the hydraulic jack to transfer the floor load to the new screw jack.
We got muddy because we were in a dirt crawlspace doing just that crawling.
Place another set of beams under these.
Adjust the screw jack so that the top and bottom plates are flush to the wood surfaces above and below.
Make repairs to settling piers and weak joists to fix swagging floors and roof lines.
Place beams under the house perpendicular to the floor joists.