Click Manage tab Settings panel MEP Settings drop-down Electrical Settings. In the right pane, select a cable tray size, and click Modify Size. I will guide you through the process step-by-step, ensuring you can efficiently modify your cable trays. In this video, you will learn: 1. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when. At its heart, Cable Tray Design, Layout means choosing and setting up cable trays to hold and protect electrical and data cables. They keep cables safe and make it easy to add or change cables later. That's some pretty work, right there! Good job! Looks great! Can I ask why you reduced your width on the bend? Cables dropping off before the turn or picking more up? Brought a bunch of cables to a controller and left with. I'm in the process of determining a method of repair or replacement for existing corroded angles supporting three levels of cable tray and thought I'd see if anyone else has experienced a similar situation or has any ideas to offer.