bob wrote:
I'm going to install network cable like in this guide (this guy is
installing coax cable, but the idea is the same):
http://www.prettyhandygirl.com/2013/...tallation.html

When drilling a hole in the floor between two walls, should I put the
hole in the middle, or at the bottom of one of the walls?

In the guide, the person apparently drilled at the bottom of one wall
and avoided drilling into the beam below the floor board. Is this
better because it doesn't weaken the structure of the house, or is it
insignificant?

I think it is confusing what you are asking and what you want to do. Are
you just running one network cable or are you trying to wire several
different locations/rooms with network cable with a centrally located patch
panel?

If it is just one network cable, is it going to come up from below in an
open ceiling basement, or down from above in an unfinished attic space with
no attic floor?

More information is needed for anyone to be able to help with this.