running boards for electrical in unfinished basement
1st time homeowner and 1st time posting here. I need to add a few runs of romex in my basement, part of which will be perpendicular to the joists. Reading the NEC I can drill holes through the joists or add a "running board" and staple the romex to that. I'm opting for choice B since I will be adding/replacing 4 circuits and want provision for a 5th. My plan is to get some 1/2" x 3 or 4" wood and attach that to the bottom of the joists.
Being a rookie I'm not sure how I should be attaching these boards to the joists. Specifically should I just nail straight up through the joists? Should I go on an angle? And what size type of nails should I use. Or should it be screws?
Thanks in advance.
Oh, and PS. Is there any type of wood I should use? I'd like to go as cheap as I can as all I am doing is hanging a few wires. I need it to be kind of moisture resistant though. The basement can get damp.
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