If you are installing a locking or floating floor not attached to the subfloor just make sure that the subfloor is clean.
Hardwood floor leveling subfloor.
If you have very high or low spots foundation or structural problems or termite damage you may need professional help.
Thoroughly vacuum the existing floor and use a long floor leveler and tape measure to ensure the subfloor is level within 3 16 inch for every 10 feet.
Use a long level and tape measure to check that the floor is level.
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.
When nailing down a wood floor the subfloor should be flat to within 1 4 in 10 or 3 16 in 6.
Hardwood floor installers often use the term level when referring to subfloors when actually they are meaning the term flat while it s desirable to have a level floor most homes.
Leveling floors can be a diy project or left to professionals.
It is the responsibility of the flooring installer to assess and address substrate flatness before.
Wood floors may be installed over subfloors that are out of level such as a ramp but should still fall within floor flatness tolerances.
If not your floor covering which is the solid hardwood laminate tile or other exposed flooring that goes on top of the subfloor will never be flat and level this problem can be fixed but it all depends on exactly what kind of uneven subfloor you have.
You ll need to know how to level a floor.
Learn how to use a grinder.
In many cases you can level a floor yourself.
Now that your subfloor is level you can proceed to put in hardwood tile laminate or carpet without having to worry about any frustrating gaps or structural imbalances.
Be sure to properly prep the leveled subfloor for whatever flooring material you ve chosen.
Typically the floor must be level and uniform within 3 16 inch every 10 feet.