Hugo Nebula wrote:
On Mon, 17 Aug 2009 11:49:31 -0700 (PDT), a certain chimpanzee,
sm_jamieson randomly hit the keyboard and
produced:

Does anyone know how much can generally be notched from the bottom
corner of a joist when it is sat in
a joist hanger, in order to adjust the height for variations in the
brick coursing ?

Rafters can be birdsmouthed, and up to one third is a rule of thumb,
so I assume joists are the same.

Don't assume. Rafters are largely in compression. Joists are pure
bending moment.

However having said that joist are way too STRONG in order to meet
deflection/loading targets.

So you can probably notch massively,.


I know I've had floor joists & steel
beams which have been chamfered to ridiculously small depths and still
passed calculations. I'm no engineer, but AFAIK, longish lengths fail
in deflection or bending long before they would fail in shear.

Yes.