Floyd wasn’t here today. I made the rest of the repairs to the rotted out floor under the staircase before moving on to the wall. There is now a layer of 3/4″ plywood in lieu of the 3″ tongue-and-groove floor boards. Beneath that, more 3/4″ plywood in place of the original floor planks. It’s all fastened down with anti-squeak screws (expensive!).
Next, the 2nd 2×6 wall separating the main suite from the staircase to the 2nd storey suite. Again, this wall has double bottom and top plates.

