floor joists

03-02-2011, 01:30 PM	#1
Taters Grandpa Newbie   Join Date: Mar 2011 Posts: 1	floor joists maximum hole size for electrical cable. Can holes be made with a drill and jig saw? Wood is too hard for hole saw. 100 yrs old.

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03-02-2011, 07:02 PM	#2
Ron6519 Member   Join Date: Mar 2007 Location: Long Island, NY Posts: 9,519	floor joists Quote: Originally Posted by Taters Grandpa maximum hole size for electrical cable. Can holes be made with a drill and jig saw? Wood is too hard for hole saw. 100 yrs old. The size of the hole depends on the size of the beam. How big of a hole do you need for a wire? You can drill a 1" hole in the middle of a 2x6. Most holes in wood, would be done with a drill. Forget the jigsaw. Ron

03-02-2011, 10:23 PM	#3
Gary in WA Moderator   Join Date: Mar 2009 Posts: 8,780	floor joists Wow, a centurion! http://arch.umd.edu/Tech/Structural_..._Guide_A11.pdf Gary __________________ Clothes taking longer to dry? Clean the dryer screen in HOT water if using fabric softener sheets. They leave a residue that impedes air-flow, costing you money. Clean the ducting in the last six months? 17,000 dryer fires annually!

03-03-2011, 12:36 AM	#4
masterofall Member   Join Date: May 2010 Location: Kelowna B.|C. Posts: 138	floor joists How big is this cable? Hole in the middle of the floor joist closer to the centre of the span would be the best choice. can you do it ith a 1" auger or less?

03-03-2011, 09:21 AM	#5
boman47k Member   Join Date: Aug 2006 Posts: 1,064	floor joists I thought most codes stipulate no more than 1/3 of the size of the joist. That may be intended for other framing members. I'm like the others, what size wire/cable? If worried about the size of the hole, why not use insulated staples. Is the wood too hard for them? second story? Ditto on forgetting the jigsaw.

03-03-2011, 03:17 PM	#6
pyper Member   Join Date: Jul 2009 Posts: 949	floor joists Forstner bit.