Take everything out of the room so that the floor is completely clear.
How to float level a floor.
Use a metal putty knife or scraper to gently pry baseboards off the walls.
Raise the lower end of the level until the bubble is centered then measure the distance from the bottom of the level to the floor to find the depth of the dip.
I will stay within the lines that we drew on the floor in tips 1 and 2.
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.
Use a sander to sand the high spots.
I will then pull my trowel across the floor trying to leave nice even tracks.
Remove any baseboards as well because the height of the floor will raise after you level it.
A thorough cleaning is also necessary to get the subflooring ready to accept the liquid bonding agent.
Fill cracks in concrete subfloor and make sure the filled areas are level before cleaning the subfloor.
If you have access to the basement or crawlspace it is possible to jack up saggy joists until they are level and then sister them so that they remain straight after the jacks are removed.
Compound can correct sags and dips as deep as 1 1 2 inches.
Your local home depot store may have rental tools available.
Remove all of the furniture appliances and baseboards from the room.
Hey guys this is adriano with imaginative tile and marble.
Fixing a floor that sags and dips pour self leveling underlayment in the problem area.
You could mix smaller or larger batches.
Keep checking the floor with a level as you sand it.
Measure the drop lay a long level downhill on the floor with one end of the level on the level part of the floor and the other end at the lowest point.