Hold the 2x4 up, mark.
cut the end cuts and then plunge cut the back if you don't want to hammer on
it.

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'
wrote in message
oups.com...
How would you go about cutting a notch in a regular 2x4 stud
across the grain, so that the notch is 1.5" into the grain
and 3.5" along it? (i.e. to embed one 2x4 crosswise into
another).

I guess a jigsaw could be used but it seems that there's
got to be a better way. What tool should be used to make
this cut?

RPM