If it is necessary to replace only one or more planks in the parquet itself, then simply “cut down” them from there with an ax, clearing the remains below. Then attach the new one with nails. It is important to fix the bar so with nails so that the hat is not visible. To do this, just flatter the hat, and smear the mounting place with varnish. When lighting with varnish, remove all the garbage from the surface and wipe the place with a degreasing agent.