It is one thing to modify framing so that you can install plumbing pipes, but why not make compensatory repairs to the damage when it is easy to do so?
I see compromised framing all the time. The following picture shows the section of floor joist that was cut away to make way for the pipe for the toilet.
What is not so easy to see in the picture, is that the pipe does not protrude past the face of the joist on the camera view side. What this means is that it would have been VERY easy to run another joist along the side of the compromised joist, nail all the boards together and be done with it. Instead it has been this way for several years and the floor is starting to sag.
With no wires or anything else in the way, it will still be relatively easy for someone to crawl under the home and double up this cut joist.
Seems like a good idea to me.
Charles Buell, Real Estate Inspections in Seattle
* * * * * * * * * * * * * * * * * * * * * * * * *
WA State, Home Inspector Advisory Licensing Board