Floor Joust Overlap

Building code requires the use of blocking for floor joists that exceed 2 inches in width by 12 inches in depth.

Floor joust overlap.

Believe it or not this kind of poor workmanship is not that uncommon. Not required to provide structural support but often provides a type of supplementary support. Here is a pathetic attempt to splice some floor joists under the bathroom. If the floor joists overlap then you will have the center of the 6th joist at 48 inches on one side of the floor and 46 1 2 or 49 1 2 on the other side of the floor.

Floor covering or finish floor this is the visible floor the one you see and walk on and can be changed out. Additional support for the floor joists is achieved by nailing the ends of the joists into headers. Though joists may be any size that you desire using typical floor joist and beam specifications ensures that you can find hardware to fit the joists and that the floor provides adequate support for furniture and other items in a room. Blocking is also needed each time the joist overlaps with a center beam and every eight feet between two joists.

Floor joists or beams provide the below surface support for the wood subfloor of a room. Since this is a repair of a faulty or damaged floor joist it is imperative to do this project correctly and there are a few big mistakes to avoid. Properly sistering floor joists is very important and should not be rushed to save time. Floor joists lapping splicing 2013 california building code section 2308 8 table 2304 9 1 the following are general requirements for floor joist lapping and splicing based on the 2013 ca building code.

How does the overlapping joists work with the sub floor. Drooping and joist sag can be seen in the photo. Sounds like butting them end to end would solve this issue. Not sure if that makes sense or if i have this all wrong.

The long view makes the overlap seem longer but i believe the nearest one is less than a foot with very few nails.