Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-23-2010, 01:24 PM   #1
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


I need to run plumbing through a 2x4 wall for 5' or so, am I OK drilling a 2" hole through them to allow room for foam noodles as well as the tubes?

Thanks!

DM

__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 08-23-2010, 01:30 PM   #2
Member
 
Join Date: Aug 2010
Location: Bay City, MI
Posts: 36
Rewards Points: 25
Default

Maximum diameter holes in 2x4 interior walls.


1 3/8" in single 2x4 stud, and 2" if studs are doubled if i remember correctly..

jarleifvaagen is offline   Reply With Quote
Old 08-23-2010, 01:33 PM   #3
Member
 
Join Date: Aug 2010
Location: Bay City, MI
Posts: 36
Rewards Points: 25
Default

Maximum diameter holes in 2x4 interior walls.


i think you need 5/8" to the edge from the hole, and the hole can't exceed 40% of stud depth in single 2x4, 50% in doubled 2x4..
jarleifvaagen is offline   Reply With Quote
Old 08-23-2010, 01:38 PM   #4
DIY Hack
 
Mr Chips's Avatar
 
Join Date: Mar 2008
Location: Location, Location
Posts: 1,302
Rewards Points: 500
Default

Maximum diameter holes in 2x4 interior walls.


Quote:
Originally Posted by jarleifvaagen View Post
i think you need 5/8" to the edge from the hole, and the hole can't exceed 40% of stud depth in single 2x4, 50% in doubled 2x4..
I always thought you could go larger if stud was on non load-bearing wall.
__________________
Those who can, do...
Those who can't criticize on the internet
Mr Chips is offline   Reply With Quote
Old 08-23-2010, 01:59 PM   #5
Member
 
Join Date: Aug 2010
Location: Bay City, MI
Posts: 36
Rewards Points: 25
Default

Maximum diameter holes in 2x4 interior walls.


that's very possible..I would check with local building codes to be sure..I base my information from one of my mentors which may or may not be correct on the issue..

if you take a 2" hole out of a 3,5" stud, there's not a whole lot left on either side..if you then offset the hole a little by accident it'll be even less on the one side... I cringe every time i put a 3/4" hole through a 2x4... lol...then again i tend to overdo things... one of my favorite terms while building something is "This should hold an elephant!".. haha
jarleifvaagen is offline   Reply With Quote
Old 08-23-2010, 02:36 PM   #6
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


There will be a wooden wall on one side (back of tub) if that makes a difference. Drywall on the other side should be sufficient?

DM
__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 08-23-2010, 03:12 PM   #7
Registered User
 
Join Date: Mar 2009
Posts: 9,967
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


http://docs.google.com/viewer?a=v&q=...b6CBPjc714bhbA

Ask locally also...

Be safe, Gary
__________________
If any ads are present in my answer above, I do not condone/support/use the product or services listed, they are there against my permission.
Gary in WA is offline   Reply With Quote
The Following User Says Thank You to Gary in WA For This Useful Post:
DangerMouse (08-23-2010)
Old 08-23-2010, 03:15 PM   #8
Old School
 
Willie T's Avatar
 
Join Date: Jan 2009
Location: St. Petersburg, FL Minds of moderate caliber ordinarily condemn everything which is beyond them.
Posts: 3,634
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


This is kind of old. It’s an excerpt from the 1994 Uniform Building Code, the International Conference of Building Officials. But I think the numbers are still the same today.

Sec. 2326.11.10. Bored Holes. A hole not greater in diameter than 40 percent of the stud width may be bored in any wood stud. Bored holes not greater than 60 percent of the width of the stud are permitted in nonbearing partitions or in any wall where each bored stud is doubled, provided not more than two successive doubled studs are so bored.

This drawing shows 2x6 walls, but you can apply the math to 2x4's if you need to. (A 2x4 is about 63.64 % of a 2x6...... Multiply any number shown here by .6364, and you should be in safe territory.) That means the 2.25" hole shown in the upper righthand example would convert to a hole 1.4319 in a 2x4. That's a little less than 1-7/16".)

But if you are going for the 60% number, you're safe with 2.1..... or a light 2-1/8". (That's a 2" hole wallowed out a tiny bit.)

Of course all this is assuming the code is still the same today as it was way back then. And if you have a stickler for an inspector, it never hurts to drill a slightly smaller hole than actually allowed. Gary shows newer and tighter codes, so I wouldn't push it.
Attached Images
 
__________________
"True eloquence consists in saying all that is necessary, and only that which is."
François Duc de La Rochefoucauld
Willie T

Last edited by Willie T; 08-23-2010 at 03:53 PM.
Willie T is offline   Reply With Quote
The Following User Says Thank You to Willie T For This Useful Post:
DangerMouse (08-23-2010)
Old 08-23-2010, 04:02 PM   #9
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


Thanks! That's very helpful! I figure I already drilled the holes, so if the framing inspector has a problem, I can always add 2x4s sideways centered in-between the existing studs, alternating edges front to back, and just keep what I have. I should probably just do that anyways since I'm pretty sure he'll say something.....

DM
__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 08-23-2010, 04:12 PM   #10
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


Something like this should be accepted if the holes are too big, yes?

Thanks!

DM
Attached Thumbnails
Maximum diameter holes in 2x4 interior walls.-added-stud.jpg  
__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 08-25-2010, 12:46 AM   #11
Member
 
Join Date: Dec 2008
Location: Fairbanks, AK
Posts: 1,847
Rewards Points: 1,000
Default

Maximum diameter holes in 2x4 interior walls.


(I guess I nuked my last reply, so....) Looks like you had room to hang the tubes from the 2x4s, no? The "sideways" 2x4 may do more good if it is snugged against the "normal, holy(play on words there, guys)" one and nailed. Each can brace the other against deflection in their weak direction. Gary?
jklingel is offline   Reply With Quote
The Following User Says Thank You to jklingel For This Useful Post:
Gary in WA (08-25-2010)
Old 08-25-2010, 09:40 AM   #12
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 2,000
Default

Maximum diameter holes in 2x4 interior walls.


Good idea....

DM

__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help caulking and filling nail holes in my trim hadees Painting 13 11-25-2012 11:32 PM
Alternatives for fixing holes in tile roof felt Squash_Pro Roofing/Siding 4 05-13-2010 07:20 PM
Drilling Multiple Holes in Studs rjschwar Building & Construction 6 01-27-2010 02:05 PM
Interior: Preserving Installation Screw Holes During Skim coating? Lovegasoline Building & Construction 4 09-29-2009 04:03 PM
Framing Gun - Nail Shank Diameter Questions... MoparAutoworks Building & Construction 5 07-03-2006 10:27 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.