I had some water damage. We wanted to remodel anyways, so I ripped everything out, including the subfloor. Now it looks like this:
Here's the same angle, color-coded and labelled for reference:
Reverse angle:
I understand that I need to attach the new subfloor along the joists and the perimeter of the room. But I don't see how I can install blocking beneath the wall behind the toilet for two reasons:
- Between the first and second joists is a drain pipe (pink) and a vent (purple) that don't allow room for a 2x4 to attach.
- Between the second and third joists is an exhaust pipe (blue, running vertical to the wall stud) that doesn't allow room for a 2x4 to attach.
My attempt to illustrate with new blocking in red:
I considered cutting the new blocking to get around those but that seems kinda pointless since then it could easily break.
How should I go about this?