Replacing Floor Joist

Old 05-04-15, 08:34 AM
Thread Starter
Join Date: Jan 2015
Posts: 3
Received 0 Votes on 0 Posts
Replacing Floor Joist

I've been in my house for about a year and am now just finishing up addressing a water issue in my crawlspace.

But with the completion of job comes 10 more that need to be done. And one of those is sistering the floor joists.

The house has a block wall foundation and the floor joists span the 13 ft between foundations wall. On either side the joists runs into a pocket in the foundation. Now I could get away with sistering a few of the joists as the wood into the foundation is good. However a few of the joists will need support at the foundation.

My options as I see it are of two routes for these

1) Notch the pocket to allow another board in the pocket and span the foundation with one solid piece


2) Remove a good 4 feet of the old joist replace it with new wood and laminate the joist to the other side,

Old 05-04-15, 08:38 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Location: USA
Posts: 27,167
Received 938 Votes on 856 Posts
I would suggest you post some pictures of the pocket and the rotten joist. The best way to sister a joist is to do it full length. That's not to say there aren't other options that will "work".

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: