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 02-03-2011, 05:18 PM   #1
Newbie
 
Join Date: Feb 2011
Posts: 1
Share |
Default

Connection Sister Joists


I want to add some sister joists to a 16' span. Its a 90 year old house with 2x8 joists. The only problem is my service entrance wire goes right through the middle of the span (since the meter is on the opposite side of the house as the breaker panel). I can not cut and move the service wire without it being a serious pain. Here are my options (that I can think of anyway)...

1) Use two 8' joists that meet at the wire notch the end of one so that the wire fits into it. (my attempt in attachment). Then use metal straps above and below the wire to connect the two joists.

2) Use one joist to span the whole length, but notch it from the top to fit around the wire. Then put another smaller joist (3-4') notched from the bottom and then bolt them together around the wire.

Of course the easy solution would be to just put in a post but that would be right in the middle of my TV room...

Thanks in advance!
Attached Images
 


Last edited by packrat32; 02-03-2011 at 05:30 PM.
packrat32 is offline   Reply With Quote
Old 02-03-2011, 09:23 PM   #2
Member
 
Join Date: Dec 2009
Location: Long Island, NY
Posts: 183
Default

Connection Sister Joists


It is, of course, best to relocate the service cable but I can see that it could become a project in itself. So, your full length option of sistering is best, a 2 X 8 to the existing 2 X 8 with as small a notch as practical, then cut a piece of 2 X 8, at least eight feet long with the opposing notch and through-bolt together or perhaps just a piece of 3/4" plywood eight feet long and screw it off with steel screws, not drywall screws, and through-bolt it. I assume this is storage above and the ceiling joists are just supporting the ceiling material, e.g gypsum board, and you have sagging and/or movement, you may wish to consider installing plywood over the joists on the attic side to form a diaphragm and that will stiffen the ceiling joists further. Be careful not to compress the insulation. Other than the above, the only thing that comes to mind is to open up the ceiling and install a flush girder that bears at both ends of the room, probably requiring the wall to be opened up and perhaps blocked below. Good Luck.

TheCamper is offline   Reply With Quote
Old 02-03-2011, 09:42 PM   #3
Newbie
 
Helpy Helperton's Avatar
 
Join Date: Feb 2011
Posts: 6
Default

Connection Sister Joists


Just my opinion, but to me it sounds like what you're considering is more trouble than just de-energizing the meter socket for a day and pulling the SE cable back so you can work freely.
Helpy Helperton is offline   Reply With Quote
Reply

Tags
joist, sistering


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
Proper installation of sister joists carbon Building & Construction 7 10-02-2010 09:17 PM
Replace or sister saging garage joists Billup Building & Construction 22 04-19-2010 09:11 PM
Full length sister joists when existing joists overlap? benjamincall Building & Construction 8 07-27-2009 10:52 AM
Sister or Replace Floor Joists brando1118 Carpentry 25 10-26-2008 08:43 PM
Sister floor joists or build support wall? Bcoleman6 Building & Construction 3 02-21-2008 01:06 PM




Top of Page | View New Posts

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