Then mix a self leveling agent with water in a large bucket and pour it over the surface of the floor.
How to level basement floor with wood.
An uneven basement floor can either prevent the completion of a basement upgrade or it can undo your hard work when the tiles crack and water collects it also makes it harder to install flooring in the first place.
Then vacuum the floor with a wet dry vac or sweep it with a broom.
Drive a screw every 6 to 8 inches along all of the joists.
Match the scribe bottom to the surface of the floor.
To level a basement floor start by removing any furniture and appliances on it and then thoroughly cleaning it.
Concrete basement floors settle easily because of their proximity to the foundation of the house and the natural tendency of the materials.
Make a final check with the level to be sure all the high and low spots are gone.
Use a pry bar to pull up hardwood floors one section at a time or unfasten carpet or laminate and roll it up from one end.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
How to level a floor for installing tile before you install file flooring follow the directions above for fixing high spots and low spots in a wood or concrete subfloor.
This will expose the subfloor underneath which is where most leveling problems lie.
Trim as needed and place the next sheet in the first row.
If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.
If you re replacing an old floor with a new one your first task will be to get rid of the outdated flooring material.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
Fasten the sheet to the floor joists with 2 1 2 inch screws driven through the old subflooring and into the joists below.
Use a squeegee or trowel to spread the self leveling agent around until the whole floor is covered.