DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Framing and Foundation > not enough floor joists

Help Support House Repair Talk by donating using the link above.
Thread Tools Search this Thread
Old 08-13-2009, 01:03 PM  
Junior Member
Join Date: Aug 2009
Posts: 2
Default not enough floor joists

1920 bungalow, floor is sagging in a few places. Was told there were not enough floor joist used when house built. What is the best way to install new joistS? Would joist hangers be better than toenailing them in? Also should I put in more piers?

shedee is offline  
Reply With Quote
Old 08-15-2009, 01:26 PM  
Senior Member
Join Date: Mar 2006
Posts: 2,990
Liked 4 Times on 4 Posts


Welcome SheDee:
If your floor joists are spaced at 24" on center, you may want to consider another joist centered between the existing ones. Yes, joist hangers are the best way to install them.
For the sagging floors, a new 4 X 6 beam centered under the existing joists and perpendicular to them, blocked up every 4' by digging down to bearing dirt and stacking concrete blocks to hold them. With the new beam at midpoints you may not need new joists.
glennjanie is offline  
Reply With Quote
Old 08-16-2013, 04:32 PM  
Senior Member
Join Date: May 2013
Posts: 339
Liked 29 Times on 26 Posts
Likes Given: 31


Easy way to fix this is with jack posts.

You can straighten the joist then sister another beam along it. At that point you could take the jack posts out or leave them in or do as Glen suggests with the concrete would be best. Probably the jack posts would work on their own depends how far you want to go with it really.
Jungle is offline  
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Help with sistering/blocking floor joists live4ever Flooring 17 06-05-2013 08:43 PM
Finding a Contractor to fix Floor Joists yakker Framing and Foundation 1 06-20-2008 09:51 PM
Supporting floor joists shan2themax Flooring 3 08-14-2007 05:03 PM
Odd stuff on floor joists WestBentley Framing and Foundation 3 02-25-2007 01:00 PM
Floor Joists in Attic cibula11 Flooring 27 01-11-2007 01:57 PM