Thanks Hoss!

I started putting the back panel together. Ran into a few issues with local corrugated board available being too think so I opted for something called economy plastic sheet. It is 0.100 thick so it rattles a little bit. Looking for something I can use to shim the panels toward the inside of the enclosure so they can be sealed with silicone. Would be better if the stuff was white but don't really care just looking for something inexpensive and it was about the same price as the corrugated.

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