A flat and stable subfloor is the foundation of a successful hardwood installation. First, remove existing flooring materials and inspect the subfloor for rot or moisture damage. Use a long level to identify uneven areas; sand down high spots and use a suitable floor leveling compound to fill low spots. Squeaks should be addressed by screwing down loose subfloor panels to the joists. Finally, clean the area thoroughly with a vacuum to remove all dust and grit. If required by the manufacturer, install the correct underlayment over the prepared surface to provide a moisture barrier and acoustic dampening.
Ask an ExpertHardwood
How do I prepare a wood subfloor for new planks?
To prepare a wood subfloor, ensure it is clean, dry, and flat. Use a level to check for high or low spots, sanding down humps or filling depressions as needed. Secure any loose boards to prevent squeaks, and ensure the surface is free of debris before proceeding.