I believe Deckadence is 14 mm w the rubberized anti slip stuff adhered to the bottom.

The miners moss I used is 10mm. If one wanted to add the rubber anti slip material it should be easy to add with a light coat of aerosol 3m adhesive on the bottom of the miners moss or directly on the rubber anti slip material. Would certainly want to keep the adhesive light enough to not close off the open weave which would then trap the water.

I'll keep everyone posted. I am in SoCal so I will be taking the boat out again soon.