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 12-17-2011, 02:28 PM   #1
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Share |
Default

Replacement Window Rough-In Framing


I'm planning to replace a window to provide more light into a room. Current double-pane window is 28 inches wide by 48 inches high.

I plan to increase the window size to 42 inches wide by 54 inches high.

From what I can tell at this point, the current window header is 2x10. Is 2x10 the correct size or can the window be framed with 2x8 or even 2x6?

I want to move the window up higher on the wall. To do this I will need a header smaller than 2x10.

Thanks.

Earnie is offline   Reply With Quote
Old 12-17-2011, 03:28 PM   #2
journeyman carpenter
 
woodworkbykirk's Avatar
 
Join Date: Sep 2011
Location: nova scotia canada
Posts: 2,670
Default

Replacement Window Rough-In Framing


you will have to check with your local building authority as to what the codes are in your area. wind load and snow loads are key things when determining header dimension also key in if there are point loads coming down on the window.

in some situations where headroom is a issue i will sometimes install a flush header in the floor system. this means the header is actually sitting on top of the top plate and any joists will hang off the header as opposed to sitting on top. this has to be approved by a engineer though

woodworkbykirk is offline   Reply With Quote
Old 12-17-2011, 03:35 PM   #3
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Default

Replacement Window Rough-In Framing


Ok, I guess I should have known engineering would be required. I haven't done anything yet. I was just wondering how tall of a window I could possibly install. Thanks.
Earnie is offline   Reply With Quote
Old 12-17-2011, 03:58 PM   #4
Disabled wood vet
 
titanoman's Avatar
 
Join Date: Nov 2011
Location: California
Posts: 1,646
Default

Replacement Window Rough-In Framing


If this is a gable roof scenario, no problem going with a smaller header. If you have rafters right over the window, I would advise against a smaller header.

Sent from a Samsung Galaxy S2
titanoman is offline   Reply With Quote
Old 12-17-2011, 04:08 PM   #5
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Default

Replacement Window Rough-In Framing


Yes, rafter are above the current window. I'll get this looked at by an architect/engineer.
Earnie is offline   Reply With Quote
Old 12-17-2011, 04:11 PM   #6
Disabled wood vet
 
titanoman's Avatar
 
Join Date: Nov 2011
Location: California
Posts: 1,646
Default

Replacement Window Rough-In Framing


Quote:
Originally Posted by Earnie View Post
Yes, rafter are above the current window. I'll get this looked at by an architect/engineer.
He's going to tell you that you can only go down with the window, not up. I promise.
titanoman is offline   Reply With Quote
Old 12-17-2011, 10:40 PM   #7
Member
 
Join Date: Aug 2009
Location: Philadelphia, PA
Posts: 142
Default

Replacement Window Rough-In Framing


Since you are going wider, you will need to replace the header. You might be able to go smaller then a 2 x 10 but it will reguire steel or lvl's.
paul100 is offline   Reply With Quote
Old 12-18-2011, 08:02 AM   #8
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Default

Replacement Window Rough-In Framing


There is 16" from the top of the window frame to the ceiling on the existing window. I have no idea how the current header is framed until I open up the wall and look.

I'm sure the header size is based upon how wide the window is and what is supported above. At this point I'm not sure the existing header is the correct size.

Is there a standard for how high a window can be from the ceiling or is it based upon the header size?
Earnie is offline   Reply With Quote
Old 12-18-2011, 08:17 AM   #9
Residential Designer
 
AndyGump's Avatar
 
Join Date: Sep 2010
Location: Orange County CA.
Posts: 1,278
Send a message via Skype™ to AndyGump
Default

Replacement Window Rough-In Framing


Look guys, although getting an engineer out there to approve a solution might be a good idea it is not required in all situations like this.
May not be required in this situation either.
North Carolina is under the 2006 International Residential Code which has prescriptive solutions for this scenario. As long as it is for a one or two family dwelling not more than 3 stories above grade, that is.

Andy.
AndyGump is offline   Reply With Quote
Old 12-18-2011, 08:17 AM   #10
Member
 
Join Date: Oct 2010
Posts: 206
Default

Replacement Window Rough-In Framing


Keep in mind, if you get the top of it out of line with the other windows and doors, it could make the house look "funny". Most always, all exterior windows and doors are set at the same height.
guest is offline   Reply With Quote
Old 12-18-2011, 10:07 AM   #11
Newbie
 
Join Date: Dec 2011
Location: Brentwood, CA
Posts: 23
Default

Replacement Window Rough-In Framing


According to the IBC, provided that there is no floor load, with a pretty much worst case scenario of a 50lb snow load, plus the ceiling load, and a building width of 36ft, you can use a double 2x6 header for openings up to 44in. So, unless you have some huge span or extremely high loading, you should be fine with the smaller timber. Take a look at Table 2308.9.5: http://napasolanoicc.org/Links/IBCSp...apterFinal.pdf.

dave54 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
Old replacement window jsfoltz Windows and Doors 1 08-26-2011 07:27 PM
Install replacement window while keeping new construction window in place key1cc Windows and Doors 9 03-25-2011 08:15 AM
Window replacement Help (New Construction) gregt848 Building & Construction 3 10-18-2009 06:59 PM
Replacement Window - Nail Fin Question smoenra General DIY Discussions 12 09-04-2008 10:19 AM
latest problem...window replacement gone_fishing Remodeling 10 02-11-2008 08:24 AM




Top of Page | View New Posts

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