HydroCore Marine Plywood
I have been using HydroCore Marine Plywood which passes the BS1088 standard. I found this company 250 miles from my home. That location is in Windsor, NC. Two other locations are in Michigan and Florida.
After applying varnish to the HydroCore, it has the appearance of teak, without the cost. Last price of 4x8 purchased was $85.00.
The woods that they stock are impressive and customer services is first rate.
Suppliers to the Marine Industry
When I go, let it be by boat, with a steady breeze on the Chesapeake with a bottle of 7-up, a bag of ice, a plastic cup, and a box of wine