Foundation issues deteriorating wood supports especially sills which rest on the foundation footer improperly installed joists or sub floors and other issues can all cause a floor to slope or sag.
How to fix sloping wood floor.
Thre ways to fix a sagging or sloping floor.
Jack up the floor slightly and knock out the existing post.
I even had to take the ceilings down on the second floor as the lower stringers on the trusses were warped and sagging because of a leaking roof.
Depending upon the conditions it is possible to strengthen or repair existing framing members such as floor joists or roof rafters by adding reinforcing material sandwiching the member on either side with plywood is sometimes worthwhile but the plywood must be installed correctly for greatest strength.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
Don t jack it up too high just high enough to remove the post.
Foundation settling is usually the culprit and.
I also found when i took down the plaster on the second floor that all my walls except exterior were built with 2 by 2 studs.
I know this because when i put my new chair mat down and snuggled up to my lovely belgian farm table of a desk for the first time today i slid promptly to the left as if i were on a skate ramp.
How to use plywood to fix sloping subfloors.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
The walls are now down to the studs which look great nice solid wood.
There are several problems that can cause a sagging or sloping floor which is one of the reasons why fixing a sloping floor is difficult.
Hardwood flooring installers sometimes encounter a sloping subfloor when working in older houses.