Re: wiring in stud walls...1st fix where are the steels? Are they on the 1st or second floor? If there on the first then have you tried wiring upstairs ring main through the ground floor ceiling. if most sockets are low lowvel then it will be less cabling for you.
Other than that make use of your safe zones. 150mm down from the ceiling, 150mm out from a corner. You can't run in the cavity but if this old wall is now an internal wall then you can clip to it if you stay inside the prescribed zones. If the beams are steel or "rsj's" then they will be boxed in by the builder for fire proofing. This may create a joint for you to run in or over the steels.
Its a hard one without looking at it.
Hope this helps |