If the floor slants irregularly cut strips that bridge the cap at each floor joist.
Leveling bathroom floor.
Clean the floor area to be filled with a broom or vacuum and dampen it with a wet sponge to avoid rapid drying.
Self leveling compound is a cement based mixture that is applied in a near liquid state.
Self leveling underlayment products can be used on concrete floors wood subfloors that are uneven but still in decent shape and even over ceramic tile floors eliminating the task of tearing.
Use screws to secure the leveling strips to the floor every 16 inches.
Then mix leveling compound according to the instructions on the package in a large bucket.
To do this simply cut several leveling strips the same size as the original strip.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
Work your way outward from the interior of the room.
Screw the strips into the floor joists or subfloor.
To level a floor start by removing the existing flooring.