IF yer talking about the closed cell (?) thin mats generally used for exercise; I believe they *may* become soggy, or at least trap water under. Ya might try ta find some of those that have a series of holes; like fatigue mats used on concrete floors?
I wonder if some of that lattice vinyl from the Big Box stores could be coated with a rubber dip compound? Might not need the comp. 'cause it's already wood grain-ey on the surface.
Just a thought......
BTW... the Newport looks fantastic!
