I am wiring my home office which happens to be the bonus room over my garage. With the help of my daughter, we pulled 7 CAT6 riser cables and fished them through the wall. That wall is flanked at the top plate by the power main feeding the breaker panel for the house. We are crossing at ~90 degrees but the distance between the main and the bundle of CAT6 is roughly 10 inches. Is this sufficient? Should I use a metal wireway?