I liked the marine grade 1 2inch because of the no void s and the 5 ply s but after i cut it i did have a couple of small voids to fill but no big deal.
Marine grade plywood for boat floor.
Better grades also tend to be lightweight strong and virtually free of defects.
If you are planning to redeck your pontoon boat with 3 4 in plywood this is the correct type of marine plywood you should use.
I bought marine grade and west system epoxy to coat it in.
Regular plywood is much less expensive than marine plywood.
All our boat floor replacement plywood panels are manufactured by inland plywood and come with a limited lifetime warranty.
It is a good quality hardwood plywood made with waterproof glue but since it s not treated with chemicals it is not rot resistant.
Marine grade plywood often simply called marine plywood is not what it s often claimed to be.
Marine grade plywood is used most typically for hull construction but can also be used.
Advantages of regular plywood over marine plywood.
Okoume marine grade plywood is typically used in combination with epoxy and fiberglass to increase strength while remaining lightweight and can be found on a variety of boats from single person kayak builders to some of the world s largest boat builders.
It takes paint well and could make a beautiful finish as a top floor something that regular plywood could not do.
A sheet can cost 10 to 50 as opposed to the cost of marine plywood which ranges from 70 to over 200 a sheet.
Applications include marine craft construction boat docks pontoon boat decks furniture and bathroom and kitchen walls and subfloor.
Water resistance bending ability and appearance are all key.
The main issue with using a non marine plywood is the eternal problem of time.
Given sufficient time and use it may be that the protective fibreglass layer becomes damaged allowing water to permeate the surface and begin to rot the underlying plywood.
Panels must be sealed on edges and face in applications that require exposure to moisture.
If the plywood is required structurally then this becomes a messy problem indeed.
Marine grade plywood for boat building.
I m in the process of replacing the floor in my boat.
Our marine plywood for boats is made with cca treated douglas fir veneers and high quality marine grade glue.
This is the same marine plywood decking used by new pontoon boat builders.
Alas this is not so.
Cca treated and designed for the rigorous marine environment.
We also offer water putty for filling in any screw holes gaps or cracks created while installing plywood decking.