This wall is running parallel to the floor joists above see picture 4.
Beam parallel to joist supporting floor above.
Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.
Nonetheless this does not ensure good floor performance.
This verification can be achieved with our forte software.
How to install a beam above ceiling joists.
For example for a 24 foot wide house with a center floor beam the total supported length of the floor joist is 24 feet.
However there is a large double 2x10 header above the entry way see picture 4 in this wall supported by a jack stud on either end see picture 5.
Score 1 for being non load bearing.
Recall from our discussion above that the supported length for the beam is the length of the floor joists that it will be supporting on either side of the beam divided by two.
Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.
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.
Whats people lookup in this blog.
For better performance the designer may wish to add a joist or blocking panels below the non bearing wall.
Score 1 for being load bearing.
Additional support for the floor joists is achieved by nailing the ends of the joists into headers.
A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.