If height is an issue take up the chipboard level the joists overlay with suitable thickness wbp plywood and then secret nail or float your new floor over the top.
How to level an uneven chipboard floor.
Over time concrete floors can settle unevenly or become uneven due to cracking and moisture.
Whether you want to refinish an uneven basement floor or replace or add new flooring on top of an existing concrete floor somewhere in your home you most likely will need to level the concrete floor.
The floor can have an unlevel subfloor and still have a base for a nice laminate floor.
It s a bit confusing but a flat floor can still be slightly out of level and still create a good foundation for a long lasting floor installation.
Answered 7th mar 2015.
Floors are rarely perfectly level.
When you are dealing with uneven floors one option that you have is to use self leveling compound.
Laminate flooring on an uneven subfloor can cause problems and needs to be addressed.
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.
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.
Uneven chipboard floor levelling options to lay an engineered wood floor.