How do you replace a single damaged floorboard?

Locate nails at each joist past the damaged area, mark cut lines 1-2mm inside nail holes, use a track-type saw set 1mm deeper than the board, finish with a Fein-type tool, and cut diagonal X lines to remove smaller pieces. A replacement board is then fitted with modified tongue and groove, reinforced with a noggin, and secured with adhesive. FSA Network floor sanders perform precise single-board replacements to maintain floor integrity.