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    scottnick20's Avatar
    scottnick20 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 9, 2014, 11:04 AM
    What size wire do I need to feed three bedrooms and a 1/2 bathroom?
    My house was built in 1947 and has old wiring. I want to eventually rewire the whole upstairs, but I am concentrating on the bathroom right now. It looks like, the easiest way to do it is to bring 1 wire from the basement to the attic, and branch out from there to each room. My guess is about 15 ft from the basement to the attic. I think the easiest way is to bring 1 wire up, but I want to know if this is the best way.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Mar 9, 2014, 01:28 PM
    I will try to move this post to electrical because where you have it now no electricians will see it. We would need to know a lot more about your home to give good advice and, most likey, this work needs a permit and is not a diy project. Your current line of thinking would be putting every bedroom light and receptacle on one breaker, not going to work.
    hfcarson's Avatar
    hfcarson Posts: 1,003, Reputation: 49
    Ultra Member
    		  
    #3

    Mar 10, 2014, 04:17 AM
    Yes, if you're doing a home upgrade project, do it in accordance with the current code...
    Get permits and inspections, protect your family and your investment.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #4

    Mar 10, 2014, 06:11 AM
    The size of the cable you need is dependent on the Amperage selected for the circuit.

    For example, a 15 amp circuit require a #14 AWG cable (or larger) while a 20 amp circuit requires a #12 AWG conductors (or larger).

    What is the amperage you need on the circuit?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #5

    Mar 10, 2014, 05:16 PM
    Be safe, 1 circuit per bedroom. If you can pull 1 you can pull 3. They will need to have AFCI breakers too.
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