How to install castellated panels around brick letterbox?

[esumon21]

Hi team,

I'm planning to install Ekodeck Castellated Panels around my brick letterbox. I'm very new to this. How do I go about installing it around the letterbox? I think I need some treated pine to create a frame around the brickwork before installing the panels. Is there any other option that might reduce the extra width? I'm currently looking at about 61mm thick (timber + panel) around the brickwork. Any suggestions will be highly appreciated. Below is the plan.

Thank you

[MitchellMc]

Hi @esumon21,

Here are the installation instructions for Ekodeck Castellated Panels. 

Using 35mm timber is really the minimum you should fix above a solid surface. Ekodeck is a composite material and can deteriorate if fixed too closely to a substrate; your 35mm will allow airflow beneath it.

Given the panels need to be fixed every 600mm, I suspect creating three mounting points would be the easiest solution. I've created the rendering below to illustrate. These frames can be mounted in position with countersunk Dynabolts.

Please let me know if you have any questions.

Mitchell