I truly appreciate all the help regarding my "drum room".
Now, if I may ask another:

My home currently has knee walls and the circuits are simply draped across the joists behind the walls.
The whole thing will be floored in 2 days. I have heard conflicting comments on drilling and/or notching floor joists,(standard joists, not "engineered wood products") but the prospect of pulling out and re routing existing wiring is much less appealing than simply cutting a small notch in the top of the joist and laying the existing cables in.

The book, "Electrical Wiring Residential" by Ray C. Mullin states that "notches on the top or bottom of joists shall not exceed one-sixth the depth of the joist, and shall not be located in the middle third of the span".
Does anyone have any comment, or can anyone cite a source for this criteria?

Thanks again. I owe you all a beer (or soda, or whatever the case may be). [Linked Image]