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Old 09-15-2010, 11:36 AM   #1
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Romex through 6" PT post?


Is it OK to run 12-2 romex through a 1/2" hole in my PT 6"x6"?
Or do I need a sleeve of some sort to protect it from evil chemicals?

Thanks guys!

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Old 09-15-2010, 11:52 AM   #2
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Romex through 6" PT post?


Inside, outside, old PT stock,new PT
Romex as in NM or UF ?
Off hand I dunno
But have seen UF run thru & around PT deck joists all the time

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Old 09-15-2010, 11:54 AM   #3
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Romex through 6" PT post?


where are you using a 6X6 PT post IN your house?

and I do not believe it would be a problem. You are not allowed to use NM in corrosive environments but I do not believe PT lumber would fit the bill. PT lumber is used (or should be) wherever there is lumber directly on concrete which is inside a building. (including where a stud may be mounted vertically against a concrete wall) I do not believe there is anything that would prevent the use of NM passing through such lumber.

Last edited by nap; 09-15-2010 at 11:58 AM.
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Old 09-15-2010, 12:02 PM   #4
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Romex through 6" PT post?


I know my inspectors are making me use stainless steel staples when I secure cables to new PT wood. Supposedly the new treatment will rust regular steel staples very quickly.
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Old 09-15-2010, 01:05 PM   #5
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Romex through 6" PT post?


Quote:
Originally Posted by nap View Post
where are you using a 6X6 PT post IN your house?
If I didn't have all these 6x6 posts, we'd be walking on my roof!

Our house is considered as "unconventional" construction by a couple inspectors, but so far all my work has passed inspections, TO code or above and beyond. I was just worried about the chemicals eating the coating off the nm and blowing up my house or something.... Po) Maybe I should make the hole a 5/8" and shove some 1/2" pvc through it to protect the cable?

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Old 09-15-2010, 01:16 PM   #6
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Romex through 6" PT post?


Quote:
Originally Posted by DangerMouse View Post
If I didn't have all these 6x6 posts, we'd be walking on my roof!

Our house is considered as "unconventional" construction by a couple inspectors, but so far all my work has passed inspections, TO code or above and beyond. I was just worried about the chemicals eating the coating off the nm and blowing up my house or something.... Po) Maybe I should make the hole a 5/8" and shove some 1/2" pvc through it to protect the cable?

DM
hardly ever will I gripe about going the extra step. Nobody says you can't do it and if it makes you feel better, then go ahead and do it. I see nothing wrong with the method and in reality, I doubt anybody can actually tell you if the chemicals in the lumber would eventually cause a premature breakdown of the sheath or insulation or not. So often, they just say "it shouldn't" and then find out 10 years later "it did".

Is your house a pole building? If so, I have some questions for you.
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Old 09-15-2010, 02:17 PM   #7
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Romex through 6" PT post?


Sure is. Ask away!

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Old 09-15-2010, 02:37 PM   #8
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Romex through 6" PT post?


Quote:
Originally Posted by DangerMouse View Post
Sure is. Ask away!

DM
is this legal?


were you required to install any type of foundation/footers other than the bag of cement at the bottom of the post hole?


any special considerations, generally speaking, you had to overcome due to building codes?

I have thought of doing the same thing but have heard rumor of the building department in my township not allowing it. Whether it is legal or not, at that point, really doesn't make much difference as it costs money to argue the point and that kind of defeats at least some of the reason for using a pole building.
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Old 09-15-2010, 03:54 PM   #9
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Romex through 6" PT post?


The engineer drew it up and it passed. There's a lot more concrete down there than a bag though.! The center support had to be 3' dia. and 4' foot deep in concrete. The outside posts are on 2' of concrete in a 2' dia. hole, I believe..... it's been a while. (below 42" frost line, of course)

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Old 09-15-2010, 03:58 PM   #10
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Romex through 6" PT post?


center support? do you have a multi level home?
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Old 09-15-2010, 04:04 PM   #11
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Romex through 6" PT post?


Nope. Single level.

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