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stryped[_3_] stryped[_3_] is offline
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Default Best way to drill deep hole for conduit.

On Nov 18, 1:30*pm, Rich Grise wrote:
On Wed, 18 Nov 2009 05:13:56 -0800, stryped wrote:
Been trying to drill through that top plate for my 2 inch conduit. For
some reason, it looks extremely deep. Like it is 3 or 4 2x4's thick. I
used a spade bit with a long extension just to get a small hole. I will
have to install the conduit in small sections with pvc couplers because of
ceiling height. (No room to drop a 10 foot section in without hitting the
roof). So the hole will need to be the diameter of the coupler which is
about 2 3/4. Also, where i need to put the hole is right beside 2 electric
wires that drop down this wall into the panel.


What is the best, easiest way to cut this hole and to ensure it


I wouldn't drill a 2 3/4 hole in a stack of 2x4's; it'll wreck the
structural strength, and the beam could be at risk of breaking at the
new weak point.

Good Luck!
Rich


That seems to be my only option. Are you saying it is not safe to do
this? One thing I did was nail a 2x4 one on each side of the place I
will drill the hole. I attached it to the beam and then attached it to
the surrounding joists. I guess it made me feel better. I will say
this top plate is running between my attic joists. It does not seem to
touch anything except the ends. It is the wall separating my attached
garage to the house.