To fix a deep wide gouge opt for a pre colored latex wood filler one that closely matches the color of your hardwood.
How to repair gouged wood floor.
When a heavy object is dropped on a hardwood floor part of the flooring can be removed.
Apply the filler using a plastic putty knife which is the tool least likely to cause any further damage to the floor.
If you have a leftover scrap of finished flooring practice on it before trying the repair on your floor.
If the scratch or gouge is deep and runs across the grain you probably won t be able to make it disappear completely but you should be able to fix it so it s hard to notice.
If it s deep enough it can expose the raw part of the wood underneath the finish.