![69a](https://safesystemsolutions.com.au/wp-content/uploads/2023/10/69a.jpg)
![69b](https://safesystemsolutions.com.au/wp-content/uploads/2023/10/69b.jpg)
![69c](https://safesystemsolutions.com.au/wp-content/uploads/2023/10/69c.jpg)
For traditional guard fence products (Type B or G4 systems) we double nest the rail when we need to omit a post to straddle a service (double nesting means to put two layers of the w-beam face on top of one another). This maintains the deflection and strength in the system at the location where a post is missing. But with the newer flexible post systems, because of their proprietary mechanics of operation, we don’t double nest them. Instead, we tighten/shorten post spacing on the approach and exit to the missing post(s).