I am turning a garage into a computer center/hobby room and will have a bundle of primarily network cables (CAT6), but also some antenna wires (LMR400 or RG6QS depending on if it is TV or radio) passing through the ceiling into the room directly above my 42U rack. I'm GUESSING that a 3" hole will be plenty. I plan on bundling the wires with Velcro ties when not messing with them, but I may, from time-to-time, need to add or remove wires to this bundle. At the moment, I haven't pulled any wires through. I am looking for a neat way to make this pass-through in the ceiling drywall but if there is a name for what I'm looking for, I can't seem to come up with the right name in my searches. I was hoping someone here would know what I'm talking about and have the right name and possibly the best place to purchase. Most of what I've been finding have been for single wires or no more than 1" in diameter when I'm looking for around 2.5-3" in diameter.