Anything better than plywood for floor?
Tackling a "soft spot" in the bathroom project... I've got the bathroom floor all out. The sub floor was 1/2" plywood. Is there a better/best type of sub floor material to use, other than simpl...
Forum Discussion
LarryJM wrote:Passin Thru wrote:
Marine grade plywood won't rot.
I don't know where you come up with such an outlandish statement, but you are 100% WRONG. Marine grade plywood has no additional treatments to prevent decay/rot CLICKY.
For the OP I agree either MDO, HDO or pressure treated could be options with the first probably the best overall.
Larry
Not only does marine plywood have no added treatments for rot resistance, it is often made with exotic tropical hardwoods which are chosen for light weight or for appearance (when used with a clear finish such as varnish), not chosen for rot resistance.
As for wood species used, the best you can hope for in terms of rot resistance when walking in and buying marine plywood is Douglas fir. Douglas fir is the same wood that you can expect to buy with good quality A-B plywood. The old growth Doug fir was only moderately rot resistant; the stuff being harvested today, not so much.
Many of the tropical species used in marine plywood actually have low rot resistance. They are manufactured with an eye on other qualities desired in boatbuilding, and they depend upon proper design and proper maintenance to prevent rot.
Save your money and get a sheet of MDO.
Wayne
