I have 7 new runs that come from various rooms of the house and to the basement of my house. Right now the lines temporarily run along the wall rather than through the joists as I normally see. The basement space is semi-finished meaning no drywall or framing but not a damp or musty space.
Are there any codes or best practices that relate to attaching the runs along the wall rather than having to drill new holes through the joists? Is this even allowed? It is a simple concrete wall that runs behind the washer but i'm thinking maybe I can attach a few 2x4's to the wall and secure the wires to that on its way 8 feet to the breaker panel. No obstructions other than 2 pipes that run vertically to the washing machine that i can easily work around.