You can replace the whole board by finding the ends and removing screws at each end and lifting. If fixed using nails, you can try to lift up at end using large screwdriver and then use crow bar or hammere to remove nails and board. If you can't do either, get a chippie in to do it, unless you know what you're doing you don't want to be drilling and sawing through floorbards.
daz, November 2007
