Hi, Looking for some advice on how to replace the rotten floorboards while supporting the wood / plaster board partition sitting on it. We have been told we have to replace the rotten floor joists in the cellar (under the front room) and the floorboards, but because a wall was built to turn the front room into a bedroom and created a hallway to the front door the wall is sitting on the floorboards directly under a floor joist. How would we best support the partition wall when removing the floorboards and joists? we were thinking about doing the hallway first then the room. Would acrows work and then slide the floorboards under the partition?