Real-wood options.
If you can cut and fit parquet, you can cut and fit real wood planking. Consider having a sawmill rip up some 2" x 3/8" teak or mahogany or birch or yellow pine or ANYTHING and lay it down over whatever underlayment is still good. Whatever you decide upon, treatment is key. If you use something permanent like epoxy (good idea, but not only idea), you MUST treat both sides of the planks or they will cup. If you just screw it down and plug the holes be sure the underlayment is well treated (epoxied) and then you can put it down with just bedding compound.You could also put down 1/4" x 3/8" strips of real holly between the planks-- THERE'S an idea!Real wood can be finished however you like. Minwax or Deks-Oje or TeakOil would be gorgeous-- and easily redone seasonally. Or do as the old schooners did-- that is, nothing. Even well-worn natural wood is beautiful.Caveats--1. Most commercially-available (non-OEM) teak-and-holly plywood is too thin on the veneer. One dropped wrench will nick through it. Then it's ugly and subject to water saturation. Think about it.2. Many commercially-available (Home Depot) parquet blocks are also veneered; and they are not laminated using marine-grade adhesives. I wouldn't put down parquet at all but if I had to, I'd use ONLY epoxy on both sides and rough it up really well with 60-grit or something first to make sure the epoxy can get in. That the store-fresh shiny finish is temporary is an understatement.3. Keep the sawmills in business. The clever people who know what the sawmill can really do are becoming scarce and the DIY-ers looking for easy and cheap (made-in-China) products are taking over. I prefer to think of sailors as people who do the work to have the right thing... but maybe that's just my opinion.JC 2