I have to install some more wiring and receptacles in my unfinished
basement. I know I have to make running boards for the wire that runs
perpendicular to the floor joists, but I'm not sure exactly how. Can someone
link a picture or specifications? Is it just a flat board or does it have to
have sides that extend past the wire like a channel? I don't want to drill
holes in the joists at this time because all the rest of the wiring is just
stapled across the joists.

Thanks
Dante