The floors in my home are sagging.
The sag of the floor is 1.25 inches in the middle of the span.
The joists are 2 feet on center and are made of 2×6 sistered with a 2×4.
I do not have enough head room in the basement to place a guirder.
The actual heights in the basement is 84.5″.
The span of the actual joists is 12 feet.
The actual joists rest on one end on the foundation wall and on the other end on a 2×4 baring wall 16 inches on center.
The lumber yard recommends to sister 2×10 16 inches on center.
I am thinking of sistering a 2×10 to ther old joists with the top of the new joists flush with the top of the old joists.
The new sistered joists being supported on one end by the 2×4 baring wall 16 inches on center. This wall heights will be reduced by 4 inches in heights.
How do I support the joists on the other end ?
1) Attach it to the mud plate with metal connectors.
2) The sistering will be enough to hold the new joists.
3) Build a perimeter wall out od 2X4.
What id the best option. Any ideas let me know.
Replies
#1 for attachment.
BTW, it is impossible to 'sister' them at 16"oc when the old are at 24" OC. only half of them will be 'sisters'. Essentially they have provided replacement figures, making your existing mess redundant, but that is probably the right way to do it. If money were less of a concern, you might do it with LVLs at 24"oc.
With that much sag, you will need to jack things up to get these in.
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Excellence is its own reward!
Edited 1/23/2003 11:39:25 PM ET by piffin
BTW, it is impossible to 'sister' them at 16"oc when the old are at 24" OC. only half of them will be 'sisters'.<<
these are called stepsisters!
Or half sisters.
Excellence is its own reward!