Looks like Douglas Fir.

Douglas Fir has a wide range of appearance depending on how
fast it grew and how it was cut. That looks to be old-growth.

Doug FIr should smell piney when cut and there will usually be
some resin oozing out somewhere.

A close-up of the endgrain would definitiviely rule in or rule out
oak. The ray flecks run perpendicular to the grain in the end
grain. Search the web for end-grain pictures of oak or check
some out at the lumberyard to see some examples.

--

FF