haven't had to do it myself...but how about a ziptie around the wires and then nail the ziptie to the beam?
I most of my case the wiring will remain accessible so i used velcro straps which are nailed to the beams...i can undo and add cables to the bundle as needed.
can someone tell me if 9-12 vdc voltage is considered a low voltage? This is for my indoor camera and smoke detector to the elk m1g. thanks
so in other words, this 12vdc wire can run with the ethernet wire with no problem?
If the 12 volt lines are powering lights or other high current stuff you could get some noise interference on the cat5. If it is true DC current then it is very unlikely even if it is higher current.
If the 12 volts is powering security cameras and smokes you will be fine. I have my camera lines and smoke lines (also an Elk) running all bundled together no problem.