I need to replace the subfloor in my bathroom there is water damage along the tub floor line, I don't want to replace or move the tub if I can avoid it. The house has only 1 bathroom and it can't stay out of action too long.

Can this be done like this ?

njfitz

Depends on the extent of the water damage. If the water damage came from the tub the damage likely extends just as far under the tub as it does into the room. You will need to start excavating along that line to test out the integrity of the subfloor which I assume is plywood. Lets us know what you find. Can you reach the area immediately below the tub via a basement or crawl?