A good thing about working with 'laddertray' type systems such as the ET range is that they are very flexible in how you can bend and curve them around a difficult environment using accessories like radius plates to make different size/radius bends in a complicated, multi layered job, such as this one.

This installation pictured demonstrates how different radius bends have been created by making different quantities of cuts in the different trays, and then attaching the radius plates to the side.

An important point is that these trays are also very well supported: They have been installed to hang from the ceiling using threaded rod and trapeze brackets.