Leon wrote:

"Duane Bozarth" wrote in message
...


But that won't tell what the deflection will be down the road 10
years...

That is true but I would be willing to believe that 80+% will show
immediately.

Perhaps...lacking data but recalling experience I suspect how much would
be species and type of construction (of the ply) would play a part.
Obviously if it sags a half-inch under immediate load it ain't
enough...a smaller deflection that might be judged acceptable initially
could easily end up w/ quite a bit more over time I believe.