Regularly treated plywood is good for everyday projects around the house such as wall and floor sheathing.
Marine plywood versus regular plywood for jon boat floor.
I m considering building a 20 power boat something along the lines of an atkins rescue minor or a tolman skiff.
In the end marine plywood is ideal for building boats houseboats and other water projects.
The main issue with using a non marine plywood is the eternal problem of time.
As a diyer do you know the difference between marine grade plywood and the more common pressure treated plywood.
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.
3m introduces its new 3m reinforced polyurethane foam a lightweight and rot.
Where do you buy marine grade treated wood a person can t win here i posted an opinion which it seems everyone has one but as posters here have said and argued over and over that marine ply uses the same wood from trees as regular ply just thinner and with no voids and the same glue i would then take from the above post not to use any wood for a deck i have used treated wood before on my.
In some ways it would make most sense for the plywood suitable for boat building to be the only plywood with a marine grade label.
Wood is good unless it fails to serve the purpose for which it is intended.
Advantages of regular plywood over marine plywood.
Marine grade plywood for boat building.
Regular plywood is much less expensive than marine plywood.
Fuel economy is important to me so i was considering building with foam core rather than plywood to keep it as light as possible.
Plywood is plywood right.
It takes paint well and could make a beautiful finish as a top floor something that regular plywood could not do.
I ve been unsuccessfully looking for some kind of comparison between the two materials.
Since marine wood is waterproof it will last longer than treated plywood.
A sheet can cost 10 to 50 as opposed to the cost of marine plywood which ranges from 70 to over 200 a sheet.
3m reinforced polyurethane foam offers lightweight alternative to plywood for marine construction general use.
However there is no harm in using marine plywood for nonwater projects.
The difference can sink or float your boat.
To understand the differences between grades of plywood and the meaning of the various designations is to choose wisely.
If the plywood is required structurally then this becomes a messy problem indeed.