imodel

You should be able to use one panel symbol for all the tegular tile. Simply add stretch planes and resize for the perimeter cuts.

I have done this by modeling the grid and then using panel symbols.

You may want to set newel to rail like the rest. Then manually add posts where you need them. HTH.

I modeled the newel from the 2D cad file that the manufacturer is kind enough to have on their website. Then imported as a "millwork" symbol that can be added to the library and used in a system railing that is visible. But I like getting exacting results in a short time. Don't like to fuss too much. I detached a single segment for the railing and blocked "architectural block" which can be added to the library. So you need to unblock from library and then you drag past corners adding breaks at corners and insure snapping is getting you exact. I have attached the two parts in a library here. Glad you guys like it! Keuka Cable Rail.zip

Such a cool looking cable rail I thought I would give it a go. My approach is a little different than those suggested. The railing system has a nautical feel to it, don't you think? Cable Rail.zip

Here is how I like to handle Cable Railings. cable rail.zip