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Upstairs bathroom remodel advice needed
Hi all, this is my first post here...
This is a picture of my flooring structure under an upstairs bathroom that I am renovating. There are oversized notches in one of the floor joists, several in the middle third, which violates notching guidelines and makes the joist unsuitable for tiling. I want to fix this as best I can.
The top right corner of the space is where the breaker box is located below on the first floor. The perpendicular short joists are just stubs that tie the joist to the wall structure below. The joist span is 12 feet, and the big notch where the grey cable crosses the joist is just about the middle of the span.
i have access to replace the joists and can replace the perpendicular stubs if needed. The supply and DWV can be seen entering in the bottom right part of the picture. The back half of this space is a water heater closet (under the roof rafters that can be seen) and there will be a partition wall just in front of the near rafter, just behind where the five wall studs are stacked.
Can I redo the joist spacing and shorten those stubs? If I were to move all joists to the right 8 to 12 inches, that would also solve a current problem in that the WC flange will be right on top of the current joist.