Note the author straddling a floor joist
that is constructed from an entire tree bole.
The wood floor joist
moisture content increases downward as the wood becomes progressively colder (Figure 4).
When one end of all floor joists
is supported by a beam, the common design deflection limit of span/480 under live residential loading is inadequate in ensuring that the beam flexural rigidity provides a 'rigid' support.
Surveyors didn't bother to ask about the use of spliced floor joists
, two-stud corners, single top plates, or other OVE tenets.
Two floor joist
failure modes were considered: a strength limit state in which the maximum stress exceeds the allowable bending stress, and a serviceability limit state in which the maximum deflection exceeds the allowable (live load) deflection.
After getting the floor joist
project done (it took my wife and I three days), we insulated the floor with 6" kraft-faced fiberglass insulation.
The first report evaluated properties of new and salvaged individual floor joists
1 Before bolting the newel post to the floor joists
, drill a pilot hole through the post and into the joist for the bolt to pass through.
If you're working alone, make yourself a support crutch (Photo 4) to hold the panels tight against the ceiling while you nail them into each floor joist
The better method is to run the wastes parallel to the floor joist
, directly to the outside wall.