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Posted by on September 29, 2008, 8:33 am
I have a small 1.5 car detatched garage. I want to get some power
into it via and underground line from my house. I will hire an
electrician to do this work. I have a concern about this work that
I'd like to get some input on if anyone cares to comment. My concern
is the drilling of holes in the 2x4 studs. The garage is older with
2x4 studs and wood siding, now covered with vinyl siding. Interior
walls haves nothing on them, you can see the studs. If there are
holes drilled through the 2x4's isn't this going to weaken them? I am
not sure of the diameter of the holes needed but maybe so that 1 to 2
wires can pass through them. All 4 of the walls are load bearing
walls and if a series of holes are drilled through many of them in a
row and at the same general height I am afraid this could weaken
the structure too much. I live in the north where we get strong winds
from bad storms and heavy snow at times. I certainly wouldn't want to
see my garage buckle or anything like that. I don't know if it would
be within code to run the wires on the outside of the 2x4 studs
securing them with large wire staples. Any comments welcome.
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Posted by SteveBell on September 29, 2008, 9:18 am
yp@cw.org wrote:
> I have a small 1.5 car detatched garage. I want to get some power
> into it via and underground line from my house. I will hire an
> electrician to do this work. I have a concern about this work that
> I'd like to get some input on if anyone cares to comment. My concern
> is the drilling of holes in the 2x4 studs. The garage is older with
> 2x4 studs and wood siding, now covered with vinyl siding. Interior
> walls haves nothing on them, you can see the studs. If there are
> holes drilled through the 2x4's isn't this going to weaken them? I am
> not sure of the diameter of the holes needed but maybe so that 1 to 2
> wires can pass through them. All 4 of the walls are load bearing
> walls and if a series of holes are drilled through many of them in a
> row and at the same general height I am afraid this could weaken
> the structure too much. I live in the north where we get strong winds
> from bad storms and heavy snow at times. I certainly wouldn't want to
> see my garage buckle or anything like that. I don't know if it would
> be within code to run the wires on the outside of the 2x4 studs
> securing them with large wire staples. Any comments welcome.
The holes will not weaken the structure significantly. Almost every
house in the country has wires installed this way, and they all do OK.
Two Romex wires will need no more than a 3/4" to 1" hole. As long as
it's in the middle of the board, all will be well.
--
Steve Bell
New Life Home Improvement
Arlington, TX
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Posted by PeterD on September 29, 2008, 9:32 am
On Mon, 29 Sep 2008 08:33:44 -0400, yp@cw.org wrote:
>I have a small 1.5 car detatched garage. I want to get some power
>into it via and underground line from my house. I will hire an
>electrician to do this work. I have a concern about this work that
>I'd like to get some input on if anyone cares to comment. My concern
>is the drilling of holes in the 2x4 studs. The garage is older with
>2x4 studs and wood siding, now covered with vinyl siding. Interior
>walls haves nothing on them, you can see the studs. If there are
>holes drilled through the 2x4's isn't this going to weaken them?
In *some* locations code will require conduit if the walls are not
sheathed.
>I am
>not sure of the diameter of the holes needed but maybe so that 1 to 2
>wires can pass through them. All 4 of the walls are load bearing
>walls and if a series of holes are drilled through many of them in a
>row and at the same general height I am afraid this could weaken
>the structure too much.
Generally, this should not be an issue, the holes should be as small
as possible, on the centerline of the studs.
> I live in the north where we get strong winds
>from bad storms and heavy snow at times. I certainly wouldn't want to
>see my garage buckle or anything like that. I don't know if it would
>be within code to run the wires on the outside of the 2x4 studs
>securing them with large wire staples. Any comments welcome.
If (big IF) your building inspector would allow that then yes you
could. But most likely he won't. If you run them in the 'ceiling'
area, protected, you probalby could get by with conduit for the down
runs to the outlets.
It probalby will be cheaper to use conduit instead of drilling anyway.
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Posted by dpb on September 29, 2008, 10:12 am
PeterD wrote:
> On Mon, 29 Sep 2008 08:33:44 -0400, yp@cw.org wrote:
...
> It probalby will be cheaper to use conduit instead of drilling anyway.
I don't see how it could possibly be cheaper, but it might be easier if
the walls are finished. I'm gathering from the questions they're not,
anyway, so even that would seem to be moot.
Given it's nearly 100% certain the wiring in the house OP's living in
runs through the wall studs like 99.44% of all other stick-framed
houses, it's quite unlikely there would be a problem in the garage.
--
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Posted by Wayne Whitney on September 29, 2008, 12:43 pm
> In *some* locations code will require conduit if the walls are not
> sheathed.
NM is not approved for exposed use in detached residential garages
under the 2002 and later NEC (see 334.10(3)). But I gather
enforcement varies greatly on this.
Cheers, Wayne
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> into it via and underground line from my house. I will hire an
> electrician to do this work. I have a concern about this work that
> I'd like to get some input on if anyone cares to comment. My concern
> is the drilling of holes in the 2x4 studs. The garage is older with
> 2x4 studs and wood siding, now covered with vinyl siding. Interior
> walls haves nothing on them, you can see the studs. If there are
> holes drilled through the 2x4's isn't this going to weaken them? I am
> not sure of the diameter of the holes needed but maybe so that 1 to 2
> wires can pass through them. All 4 of the walls are load bearing
> walls and if a series of holes are drilled through many of them in a
> row and at the same general height I am afraid this could weaken
> the structure too much. I live in the north where we get strong winds
> from bad storms and heavy snow at times. I certainly wouldn't want to
> see my garage buckle or anything like that. I don't know if it would
> be within code to run the wires on the outside of the 2x4 studs
> securing them with large wire staples. Any comments welcome.