Top Notch is a premium OSB subflooring. I have alternated between Advantec
and Top Notch for the past couple of years. Personally, I prefer the Top
Notch product. It is very heavy, dense, and stiff. It has drainage notches
in the tongue so water cannot stand on the floor during construction. And
it won't need to be sanded prior to the installation of finish flooring.

Oh, by the way, it costs a lot more than plywood...

Shannon Pate

"TN" wrote in message
...
My builder wants to use Lousiana Pacific Top-notch OSB for the subflooring
in our new house. I haven't heard much about the product, can anyone shed
some light (pros/cons) to using it?
Thanks!