Floor board generator
Using the Blender Add-on, you generate a surface with “real” geometry for your wood floor with planks. That will give a much better result for realism than using a texture. You have full control over plank size and other settings.
If your camera is somehow close to the floor or you must show some fine detail related to shadows, you should use this Add-on to generate the planks for a wood floor. For all other cases, a PBR texture of a wood floor with a normal map would do the trick with a much better performance.