I think we have narrowed down to one board to replace. The board is in a smaller hallway area; assuming the expansion/contraction wouldn't be as great in regard to pressure on board. I was thinking of using my Rotozip tool with the blade for wood cutting; carefully set the depth as to avoid the concrete underneath best I can. Also blue tape adjacent boards to avoid any scratching. Wondering if I use a drill with hole saw (have Morse kit) to also remove wood? Got the sharp wood chisels to carefully finish removing remaining wood.
Still kinda wondering about the best glue option. I have read a urethane based glue is a good choice and some have recommended PL400 which I have worked with in the past. Seems the PL400 would be like a rock after set and near impossible for the board to potentially pop due to too much pressure.
More feedback appreciated.
Thanks