A gash in a wood floor is deeper than a scratch: wood fiber is missing. Fill, level, and color-match so the repair does not flash under side light.
Clean and assess
Vacuum debris from the wound. If the gash reaches soft or rotten wood, dig back to solid fiber before filling. Check for ongoing moisture under the board.
Choose a filler
Two-part wood epoxy holds up well in floors that see traffic. Tinted wood filler works for shallower voids. Hard wax is better for finish-depth chips than structural gashes.
Fill and level
Overfill slightly, cure fully, then sand flush with the surrounding board. Keep dust off neighboring finish by masking when practical.
Color matching
Layer stain, dye, or grain markers to match nearby boards. Seal with a compatible floor finish in thin coats, feathering beyond the patch so sheen blends.
For more repairs like this, start in the Scratches & Surface Fixes hub. If you are working through a related problem next, see Scratched Wood Floor Repair: Restore Your Home’s Natural Glow or Wood Table Scratch: Simple DIY Methods to Restore the Shine.
