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THHN stranded vs solid

PNWguy

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Is there any reason to spend a small extra amount and get stranded wire if I'm running conduit? The cost, overall, is insignificant.
 
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Kevin Essiambre

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Depends on how long the run is, and a couple other things that stranded will make easier.


I personally like solid wiring.

Sent from my new phone. Autocorrect may have changed stuff.
 

mike93lx

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At #10 and up, it will make dealing with it in boxes a lot easier. The flexibility difference is significant
 

Stuart in MN

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For #14 or #12 I don't think there's enough difference to matter. For #10 or larger, stranded makes more sense.
 
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PNWguy

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Thanks. For clarification, this is lights and outlets #12 & #14.
I figured on the big diameter I'd go with stranded for sure.
 

dogdog

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Don't cheap out, it's not that expensive for a roll of 500' stranded even at HD or Lowes.... the stranded ones is a lot easier to pull especially if you are stuffing more than 1/2 of the max-fill even at that #12 and #14 gauge.. it will be hard to pull...
 

ard

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I prefer stranded in conduit- inside and outside, pvc or emt/metal.

Sometimes a bit more considerations required- like pigtailing to solid if it needs to be screwed down- but it is more flexible and doenst get 'ugly' with bending. (Stranded wire will stay nice and 'whippy', even when you close a cover and open later, doestn get 'set' into kinks as easily...)
 
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Terry D

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I only run stranded. Much easier to pull, much easier to make up boxes. Be sure to get back wired devices. I even use stranded MC cable. It's a little harder to make it look nice when wiring a panel, but well worth it.

Sent from my SM-G960U using The Garage Journal mobile app
 
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PNWguy

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Don't cheap out, it's not that expensive for a roll of 500' stranded even at HD or Lowes.... the stranded ones is a lot easier to pull especially if you are stuffing more than 1/2 of the max-fill even at that #12 and #14 gauge.. it will be hard to pull...

It's not about money. The cost is insignificant in the big picture of a house & shop. I think it'll be $20 or so.

It's really all about the ease of installation, and I have only worked with Romex in the past.

Most of my runs will be straight, or a single 90* bend. The space is a 32x40 metal/auto shop and 16x30 woodshop. Long walls, with no interruptions. I'll use whatever is easier to get into the box and connect the outlet.
 

yeldogt

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On a single short straight run -- it really does not matter. If you are doing very much or may be doing some in the future ... get the stranded. It's much easier to work with -- the solid gets to be a pain ... almost instantly. Buy the 500 ft rolls and have at it.

Yes -- you need to get the back feed devices -- but, I use them anyway.

Many years ago I got a deal on a few rolls of solid #12 -- much of it is still in my garage.
 

sberry

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I have wrapped 1000s of stranded around screws, twist left handed first and make a fairly long strip. They are very secure. I don't care for Nutting solid to strand, Nutting strand can produce a connection as good as welded.
 

brewchief

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FWIW I would probably only buy #12 instead of both #12 and #14.

Say you will need 500' in white and black for outlets and about the same for lights, if it's all the same size it's much easier to pull multiple circuits at the same time. Easy to have a bigger selection of colors as well to help keep track of circuits.

Sent from my SM-G965U using Tapatalk
 
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PNWguy

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FWIW I would probably only buy #12 instead of both #12 and #14.

Say you will need 500' in white and black for outlets and about the same for lights, if it's all the same size it's much easier to pull multiple circuits at the same time. Easy to have a bigger selection of colors as well to help keep track of circuits.

Good tip - but I think my light circuits will all be on the ceiling, and the vast majority of the outlets will be on the walls. Different conduit.
 

brewchief

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Good tip - but I think my light circuits will all be on the ceiling, and the vast majority of the outlets will be on the walls. Different conduit.
Say you are going to have your lights on 3 separate switches, to pull all 3 from one switch location at once you would need 6 rolls of wire, buying 6 rolls of #14 and only using 1/4 of each is wasteful, if you can share the wire among all of the lights and plug circuits it makes having that many rolls worthwhile.

Conduit can be the same way, given a choice I would use 3/4" for everything especially if I had to buy benders and such.

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PNWguy

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Say you are going to have your lights on 3 separate switches, to pull all 3 from one switch location at once you would need 6 rolls of wire, buying 6 rolls of #14 and only using 1/4 of each is wasteful, if you can share the wire among all of the lights and plug circuits it makes having that many rolls worthwhile.

Conduit can be the same way, given a choice I would use 3/4" for everything especially if I had to buy benders and such.

Ahhh, got it now. Thanks for the explanation.
 
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