Concrete Uneven Under Wood Floor

Remove carpet rugs padding and padding strips.

Concrete uneven under wood floor.

This is a situation you might encounter in some older homes. If the entire slab is uneven you may have to use a self leveling concrete compound to smooth it out. If the floor beams and joists are made from wood like the ones above a crawl space they will usually bend rather than crack. When you are dealing with uneven floors one option that you have is to use self leveling compound.

Remove all debris dust and loose particles off the floor. Self leveling compound is similar to concrete typically coming in large bags in powder form. Mold and or rot in your crawl space. All you need is complete access to your concrete floor area.

Concrete blocks or heavy items leveling an uneven subfloor leads to an even wood floor. This compound can potentially be utilized on a concrete slab or a wood subfloor and it works well when you are dealing with dips in the floor. First measure the difference between the high and low points of the floor. If you have old vinyl or any other flooring over uneven concrete demo and remove all debris.

If you install wood flooring directly over an uneven subfloor your new wood floor will be uneven as well. Use your judgment to see what will be in the way and remove those. Tiny dips or ridges in the concrete won t affect your hardwood floor installation but large ones can lead to floor squeaks later as the connection between the floor boards is stressed. For a solid wood subfloor.