How to Add Holes to an Electrical Box
You need electrical enclosures for all kinds of devices in a building or around the house. You can get generic options that work great in most cases, but sometimes, you need to customize the box a little bit. Generally speaking, adding a hole that allows cable or devices to run a little better can help the installation and lead to better outcomes, but you have to do it the right way. This guide will walk you through the basics of adding holes to an electrical enclosure Knockout Holes The easiest way to punch holes in the plating of adjustable electrical boxes is to make use of the designed, perforated knockout holes. These come in many different shapes and sizes, depending on the electrical box. Unless the box is custom fabricated for a single purpose, you will likely find multiple knockout holes along the enclosure. Pick the one at the appropriate location, and knock it out. Typically, you can free the hole covering by cutting the tabs that attach it to the rest of the ...