If the floor is uneven lift up the board until it is level so you ll know how much flooring compound you ll need to even it out.
Level on top old hardwood floor.
Installing a laminate floor over hardwood is a great option in many cases.
Sand humps with a belt sander and fill any depressions with a troweled on patching compound.
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.
Floors are rarely perfectly level.
If the hardwood floor is wavy you will need to do some work to level it out before installing your laminate floor.
Sand any areas that you filled in once the compound is dry.
Analyze the floor s level using a 10 foot straight edge.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
For one thing if you ever want to revert back to the original hardwood you can simply pull out the laminate and the old floor has suffered no damage.
When laying it over an existing floor a.
If the area is very large use a long straight 2 in 4 in 5 1 cm 10 2 cm board and set your level on top of it.
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 have a.