Renovation wiring: run Romex perp to joists?

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Old 12-11-18, 08:44 AM
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Renovation wiring: run Romex perp to joists?

When doing renovation wiring how does new Romex get pulled perpendicular to joists & studs? Do you cut an access hole at each joist so the wire can be fished? Notch the joist & cover with a nail plate?
 
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Old 12-11-18, 09:25 AM
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Cut access hole or use very long drill bit. They make special bits for this purpose that 5 feet or more long.
 
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Old 12-11-18, 10:26 AM
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It's often easier to go up to the attic or down to the basement, then back up/down to the new outlet. It's rare that you have to go through a number of studs.

The flex drill bits that Joed mentions are pretty cool, but take a bit of practice to work well.
 
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Old 12-11-18, 01:24 PM
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I usually cut out a 12" wide strip of drywall instead of separate holes at each joist. It's easier to patch one big hole than 20 little ones.
 
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Old 12-11-18, 04:37 PM
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I usually cut out a 12" wide strip of drywall instead of separate holes at each joist. It's easier to patch one big hole than 20 little ones.
I use the same process. The long drill bits are fine until you hit a water line or another electrical cable.
 
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Old 12-12-18, 07:56 AM
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I like the idea of one long slot and agree it would be easier to hide the repair than a dozen evenly-spaced holes.

I wouldn't trust myself to drill a blind hole thru several joists spanning several feet. Who knows what you might hit or where it could exit.
Do electricians actually do this?

Seems far safer to work below the ceiling & run the new wire just behind the drywall. What are the rules for notching joists or trusses?
 
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Old 12-12-18, 10:03 AM
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I don't know why you would notch anything. Get yourself a 3/4" or 7/8" auger bit or paddle bit and drill through the stud/joist. Drill dead center of the studs and at least the same distance away from the edge of the joists and you won't need any kick plates.

If you have access from above (attic) or below (unfinished basement/crawlspace), running your cables in these areas makes the most sense.
 
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Old 12-12-18, 05:19 PM
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What are the rules for notching joists or trusses?
Google "notching joists" Nail plates would be required if you notch the joists. You may not notch or drill trusses.
 
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Old 12-13-18, 05:05 AM
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Hi, what are you trying to accomplish? Is your ceiling strapped,if so you can fish perpendicular to the joists, are there any closets you can work out of? You may need to get creative, cutting a long strip of drywall should be a last resort
IMO
Geo
 
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Old 12-13-18, 06:32 AM
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The question comes from seeing a gadget that makes cutting outlet boxes into drywall easy. One of the suggested uses was in cutting holes for fishing romex.

Nothing planned but if there is a real easy way to accomplish this in a ceiling with no access above or below then I have a coat closet that could use a proper light.

If NOT easy then I'll continue to use the battery-powered lights I have. This temporary solution would be frowned on if I were to put my home on the market--which is something I'm starting to consider as the years add up.
 
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Old 12-13-18, 08:20 AM
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Hi, is that a Rotozip you are referring to? are you just interested in installing ceiling lights?
Geo
 
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