The "rule of thumb" is 1/8" for every foot of width.

Thanks That was what I was looking for. What is the length delta?

, you're probably looking at a 95%
humidity environment where you worked it versus a 20% humidity
environment it'll live in.

I doubt anyone's house is that tight. I have a weksler running all the time and
my humidity cruises in the low 60s with the AC on when the outside ambient is
85-99 (SW Fla)
I have the cypress in the house now so it will be stabilized when I glue it up.