If you’ve decided to install a new floor and you find out that the sub-floor is uneven, you’re probably wondering how you can resolve the problem. Here are some solutions for your problem.
The great thing about this type of compound is that it can be used with concrete sub-floor as well as with wood sub-floor.
For uneven sub-floors you can also use plywood. This method is great if you have wood sub-flooring. Thus you will create a perfect even sub-floor on which you can install the floor.
For larger difference you can use a thicker plywood sheet. Also, plywood can resolve problems with wavy floors. Because the sheets are quite big, they can cover almost any differences.
One thing that you need to worry about is that of using nails that are large enough to go through the sub-floor underneath. For concrete use bolts.
For large bumps, you can grind the concrete floor and sand the wood sub-floor.