Floor Joust Overlap

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.

Floor joust overlap.

The long view makes the overlap seem longer but i believe the nearest one is less than a foot with very few nails. Floor covering or finish floor this is the visible floor the one you see and walk on and can be changed out. Properly sistering floor joists is very important and should not be rushed to save time. This handout is intended to provide only general information for further information contact the building safety division.

Floor joists or beams provide the below surface support for the wood subfloor of a room. How does the overlapping joists work with the sub floor. Blocking is also needed each time the joist overlaps with a center beam and every eight feet between two joists. When you remove the floor covering you will see more flooring underneath possibly underlayment definitely subfloor.

Believe it or not this kind of poor workmanship is not that uncommon. Here is a pathetic attempt to splice some floor joists under the bathroom. Sounds like butting them end to end would solve this issue. Not sure if that makes sense or if i have this all wrong.

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. 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. 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. Additional support for the floor joists is achieved by nailing the ends of the joists into headers.

Section r502 10 of the international residential code states that header joists can be the same size as the floor joists when the header joist span isn t greater than 4 feet but if the header joist span is more than 4 feet you ll need to double the header joist and ensure that it s capable of.