Yes, non-metallic sheathed cable—universally known as Romex—is the absolute gold standard and most commonly utilized electrical wiring method in modern residential construction throughout North America. It is specifically engineered, tested, and approved by national electrical codes for running through wooden wall studs, floor joists, and ceilings in residential homes. However, local municipal building codes may occasionally require Romex to be run inside protective conduit in commercial buildings or specific unfinished basement areas.
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