The property on our new build is slightly lower than the neighbours and he had put paving in place 15 years ago, which went under the fence, so I was unable to install colorbond plinthing - to stop his sand falling onto my concrete.
Instead, I was able to get hold of a different brand plinth and make it fit partially under the fence panels. - this would then form the base that my Bunnings screens would sit on. I did two separate areas, using the plinthing as follows
Here are a couple of pics (I ran a drying roller over them to add a touch of colour)... I didn't want them all one colour.
That's a great way to think outside the box and solve a troublesome issue. I've found a great deal of Doing It Yourself is about pivoting around issues and finding solutions to problems that would ultimately inhibit completion of a project.
Many thanks for sharing your project as I trust anyone with a similar issue will appreciate your solution.