A.Steve Andrews responds: Most manufactured panels have built-in electrical channels. These channels are typically 1-inch holes running through the center of the panel section, so they are well out of the way of drywall screws. They usually run horizontally 12 to 16 inches off the floor, or at about 44 inches (countertop height).

In addition to the horizontal runs, the panels have vertical channels. In some cases, these are placed in the center of the panels, so you have a rise for the wiring every 48 inches. In other cases, there is a notch behind the 2x4 spline that joins each panel. In either case, you have to drill a 1-inch hole through the plates as you set the...

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